Title: [217737] trunk/Source
Revision
217737
Author
simon.fra...@apple.com
Date
2017-06-02 16:06:13 -0700 (Fri, 02 Jun 2017)

Log Message

All scroll peformance logging should happen in the UI process
https://bugs.webkit.org/show_bug.cgi?id=172874
rdar://problem/24474830

Reviewed by Tim Horton.

Printing to stdout from the WebProcess doesn't show up anywhere in non-development builds,
so we have to log from the UI process.

Achieve this by adding a PerformanceLoggingClient to Page which forwards messages to
WebPageProxy, which prints them with the same format they had before. Some plumbing through
PlatformCALayerClient and GraphicsLayerClient is required to get messages from TileControllers
through to something that can get to Page.

Source/WebCore:

* WebCore.xcodeproj/project.pbxproj:
* page/Page.cpp:
(WebCore::Page::Page):
(WebCore::Page::~Page):
* page/Page.h:
(WebCore::Page::performanceLoggingClient):
* page/PageConfiguration.cpp:
* page/PageConfiguration.h:
* page/PerformanceLoggingClient.cpp: Added.
(WebCore::PerformanceLoggingClient::synchronousScrollingReasonsAsString):
* page/PerformanceLoggingClient.h: Added.
(WebCore::PerformanceLoggingClient::~PerformanceLoggingClient):
* page/scrolling/AsyncScrollingCoordinator.cpp:
(WebCore::AsyncScrollingCoordinator::reportExposedUnfilledArea):
(WebCore::AsyncScrollingCoordinator::reportSynchronousScrollingReasonsChanged):
* page/scrolling/AsyncScrollingCoordinator.h:
* page/scrolling/ScrollingTree.h:
(WebCore::ScrollingTree::reportSynchronousScrollingReasonsChanged):
(WebCore::ScrollingTree::reportExposedUnfilledArea):
* page/scrolling/ThreadedScrollingTree.cpp:
(WebCore::ThreadedScrollingTree::reportSynchronousScrollingReasonsChanged):
(WebCore::ThreadedScrollingTree::reportExposedUnfilledArea):
* page/scrolling/ThreadedScrollingTree.h:
* page/scrolling/mac/ScrollingTreeFrameScrollingNodeMac.h:
* page/scrolling/mac/ScrollingTreeFrameScrollingNodeMac.mm:
(WebCore::ScrollingTreeFrameScrollingNodeMac::commitStateBeforeChildren):
(WebCore::ScrollingTreeFrameScrollingNodeMac::setScrollPosition):
(WebCore::ScrollingTreeFrameScrollingNodeMac::exposedUnfilledArea):
(WebCore::ScrollingTreeFrameScrollingNodeMac::logExposedUnfilledArea): Deleted.
(WebCore::logThreadedScrollingMode): Deleted.
* platform/graphics/GraphicsLayerClient.h:
(WebCore::GraphicsLayerClient::logFilledVisibleFreshTile):
* platform/graphics/ca/GraphicsLayerCA.cpp:
(WebCore::GraphicsLayerCA::platformCALayerLogFilledVisibleFreshTile):
* platform/graphics/ca/GraphicsLayerCA.h:
* platform/graphics/ca/PlatformCALayerClient.h:
(WebCore::PlatformCALayerClient::platformCALayerLogFilledVisibleFreshTile):
* platform/graphics/ca/TileController.cpp:
(WebCore::TileController::logFilledVisibleFreshTile):
* platform/graphics/ca/TileController.h:
* platform/graphics/ca/TileGrid.cpp:
(WebCore::TileGrid::platformCALayerPaintContents):
* platform/graphics/ca/TileGrid.h:
* rendering/RenderLayerBacking.cpp:
(WebCore::RenderLayerBacking::logFilledVisibleFreshTile):
* rendering/RenderLayerBacking.h:

Source/WebKit2:

* UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::logScrollingEvent):
* UIProcess/WebPageProxy.h:
* UIProcess/WebPageProxy.messages.in:
* WebKit2.xcodeproj/project.pbxproj:
* WebProcess/WebCoreSupport/WebPerformanceLoggingClient.cpp: Added.
(WebKit::WebPerformanceLoggingClient::WebPerformanceLoggingClient):
(WebKit::WebPerformanceLoggingClient::logScrollingEvent):
* WebProcess/WebCoreSupport/WebPerformanceLoggingClient.h: Added.
* WebProcess/WebPage/WebPage.cpp:
(WebKit::m_cpuLimit):

Modified Paths

Added Paths

Diff

Modified: trunk/Source/WebCore/CMakeLists.txt (217736 => 217737)


--- trunk/Source/WebCore/CMakeLists.txt	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/CMakeLists.txt	2017-06-02 23:06:13 UTC (rev 217737)
@@ -2085,6 +2085,7 @@
     page/Performance.cpp
     page/PerformanceEntry.cpp
     page/PerformanceLogging.cpp
+    page/PerformanceLoggingClient.cpp
     page/PerformanceMonitor.cpp
     page/PerformanceNavigation.cpp
     page/PerformanceObserver.cpp

Modified: trunk/Source/WebCore/ChangeLog (217736 => 217737)


--- trunk/Source/WebCore/ChangeLog	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/ChangeLog	2017-06-02 23:06:13 UTC (rev 217737)
@@ -1,3 +1,66 @@
+2017-06-02  Simon Fraser  <simon.fra...@apple.com>
+
+        All scroll peformance logging should happen in the UI process
+        https://bugs.webkit.org/show_bug.cgi?id=172874
+        rdar://problem/24474830
+
+        Reviewed by Tim Horton.
+
+        Printing to stdout from the WebProcess doesn't show up anywhere in non-development builds,
+        so we have to log from the UI process.
+
+        Achieve this by adding a PerformanceLoggingClient to Page which forwards messages to
+        WebPageProxy, which prints them with the same format they had before. Some plumbing through
+        PlatformCALayerClient and GraphicsLayerClient is required to get messages from TileControllers
+        through to something that can get to Page.
+
+        * WebCore.xcodeproj/project.pbxproj:
+        * page/Page.cpp:
+        (WebCore::Page::Page):
+        (WebCore::Page::~Page):
+        * page/Page.h:
+        (WebCore::Page::performanceLoggingClient):
+        * page/PageConfiguration.cpp:
+        * page/PageConfiguration.h:
+        * page/PerformanceLoggingClient.cpp: Added.
+        (WebCore::PerformanceLoggingClient::synchronousScrollingReasonsAsString):
+        * page/PerformanceLoggingClient.h: Added.
+        (WebCore::PerformanceLoggingClient::~PerformanceLoggingClient):
+        * page/scrolling/AsyncScrollingCoordinator.cpp:
+        (WebCore::AsyncScrollingCoordinator::reportExposedUnfilledArea):
+        (WebCore::AsyncScrollingCoordinator::reportSynchronousScrollingReasonsChanged):
+        * page/scrolling/AsyncScrollingCoordinator.h:
+        * page/scrolling/ScrollingTree.h:
+        (WebCore::ScrollingTree::reportSynchronousScrollingReasonsChanged):
+        (WebCore::ScrollingTree::reportExposedUnfilledArea):
+        * page/scrolling/ThreadedScrollingTree.cpp:
+        (WebCore::ThreadedScrollingTree::reportSynchronousScrollingReasonsChanged):
+        (WebCore::ThreadedScrollingTree::reportExposedUnfilledArea):
+        * page/scrolling/ThreadedScrollingTree.h:
+        * page/scrolling/mac/ScrollingTreeFrameScrollingNodeMac.h:
+        * page/scrolling/mac/ScrollingTreeFrameScrollingNodeMac.mm:
+        (WebCore::ScrollingTreeFrameScrollingNodeMac::commitStateBeforeChildren):
+        (WebCore::ScrollingTreeFrameScrollingNodeMac::setScrollPosition):
+        (WebCore::ScrollingTreeFrameScrollingNodeMac::exposedUnfilledArea):
+        (WebCore::ScrollingTreeFrameScrollingNodeMac::logExposedUnfilledArea): Deleted.
+        (WebCore::logThreadedScrollingMode): Deleted.
+        * platform/graphics/GraphicsLayerClient.h:
+        (WebCore::GraphicsLayerClient::logFilledVisibleFreshTile):
+        * platform/graphics/ca/GraphicsLayerCA.cpp:
+        (WebCore::GraphicsLayerCA::platformCALayerLogFilledVisibleFreshTile):
+        * platform/graphics/ca/GraphicsLayerCA.h:
+        * platform/graphics/ca/PlatformCALayerClient.h:
+        (WebCore::PlatformCALayerClient::platformCALayerLogFilledVisibleFreshTile):
+        * platform/graphics/ca/TileController.cpp:
+        (WebCore::TileController::logFilledVisibleFreshTile):
+        * platform/graphics/ca/TileController.h:
+        * platform/graphics/ca/TileGrid.cpp:
+        (WebCore::TileGrid::platformCALayerPaintContents):
+        * platform/graphics/ca/TileGrid.h:
+        * rendering/RenderLayerBacking.cpp:
+        (WebCore::RenderLayerBacking::logFilledVisibleFreshTile):
+        * rendering/RenderLayerBacking.h:
+
 2017-06-02  Eric Carlson  <eric.carl...@apple.com>
 
         [MediaStream iOS] Cleanup video muting/unmuting when tab visibility changes

Modified: trunk/Source/WebCore/WebCore.xcodeproj/project.pbxproj (217736 => 217737)


--- trunk/Source/WebCore/WebCore.xcodeproj/project.pbxproj	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/WebCore.xcodeproj/project.pbxproj	2017-06-02 23:06:13 UTC (rev 217737)
@@ -486,6 +486,7 @@
 		0F6A12BE1A00923700C6DE72 /* DebugPageOverlays.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F6A12BC1A00923700C6DE72 /* DebugPageOverlays.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		0F7D07331884C56C00B4AF86 /* PlatformTextTrack.h in Headers */ = {isa = PBXBuildFile; fileRef = 072847E216EBC5B00043CFA4 /* PlatformTextTrack.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		0F7DF1481E2BF1B10095951B /* WebCoreJSClientData.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0F7DF1471E2BF1A60095951B /* WebCoreJSClientData.cpp */; };
+		0F850FE31ED7C18300FB77A7 /* PerformanceLoggingClient.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F850FE21ED7C18300FB77A7 /* PerformanceLoggingClient.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		0F87166F1C869D83004FF0DE /* LengthPoint.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0F87166D1C869D83004FF0DE /* LengthPoint.cpp */; };
 		0F8716701C869D83004FF0DE /* LengthPoint.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F87166E1C869D83004FF0DE /* LengthPoint.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		0F8B45721DC3FBA300443C3F /* IntersectionObserverCallback.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F8B45711DC3FBA300443C3F /* IntersectionObserverCallback.h */; };
@@ -556,6 +557,7 @@
 		0FEA3E88191B3BD7000F1B55 /* ScrollingTreeFrameScrollingNode.h in Headers */ = {isa = PBXBuildFile; fileRef = 0FEA3E86191B3BD7000F1B55 /* ScrollingTreeFrameScrollingNode.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		0FEF20CE1BD4A24100128E5D /* LengthSize.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0FEF20CD1BD4A24100128E5D /* LengthSize.cpp */; };
 		0FEF20D01BD4A64F00128E5D /* RenderStyleConstants.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0FEF20CF1BD4A64F00128E5D /* RenderStyleConstants.cpp */; };
+		0FF2E80D1EE0D430009EABD4 /* PerformanceLoggingClient.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0FF2E80C1EE0D430009EABD4 /* PerformanceLoggingClient.cpp */; };
 		0FF50269102BA9430066F39A /* JSStyleMedia.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0FF50267102BA9430066F39A /* JSStyleMedia.cpp */; };
 		0FF5026A102BA9430066F39A /* JSStyleMedia.h in Headers */ = {isa = PBXBuildFile; fileRef = 0FF50268102BA9430066F39A /* JSStyleMedia.h */; };
 		0FF50271102BA96A0066F39A /* StyleMedia.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0FF5026E102BA9660066F39A /* StyleMedia.cpp */; };
@@ -7917,6 +7919,7 @@
 		0F6A12BB1A00923700C6DE72 /* DebugPageOverlays.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = DebugPageOverlays.cpp; sourceTree = "<group>"; };
 		0F6A12BC1A00923700C6DE72 /* DebugPageOverlays.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = DebugPageOverlays.h; sourceTree = "<group>"; };
 		0F7DF1471E2BF1A60095951B /* WebCoreJSClientData.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = WebCoreJSClientData.cpp; sourceTree = "<group>"; };
+		0F850FE21ED7C18300FB77A7 /* PerformanceLoggingClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = PerformanceLoggingClient.h; sourceTree = "<group>"; };
 		0F87166D1C869D83004FF0DE /* LengthPoint.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = LengthPoint.cpp; sourceTree = "<group>"; };
 		0F87166E1C869D83004FF0DE /* LengthPoint.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = LengthPoint.h; sourceTree = "<group>"; };
 		0F8B456F1DC3FB1000443C3F /* IntersectionObserverCallback.idl */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = IntersectionObserverCallback.idl; sourceTree = "<group>"; };
@@ -7990,6 +7993,7 @@
 		0FEA3E86191B3BD7000F1B55 /* ScrollingTreeFrameScrollingNode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ScrollingTreeFrameScrollingNode.h; sourceTree = "<group>"; };
 		0FEF20CD1BD4A24100128E5D /* LengthSize.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = LengthSize.cpp; sourceTree = "<group>"; };
 		0FEF20CF1BD4A64F00128E5D /* RenderStyleConstants.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = RenderStyleConstants.cpp; sourceTree = "<group>"; };
+		0FF2E80C1EE0D430009EABD4 /* PerformanceLoggingClient.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = PerformanceLoggingClient.cpp; sourceTree = "<group>"; };
 		0FF50267102BA9430066F39A /* JSStyleMedia.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = JSStyleMedia.cpp; sourceTree = "<group>"; };
 		0FF50268102BA9430066F39A /* JSStyleMedia.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = JSStyleMedia.h; sourceTree = "<group>"; };
 		0FF5026E102BA9660066F39A /* StyleMedia.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = StyleMedia.cpp; sourceTree = "<group>"; };
@@ -19348,6 +19352,8 @@
 				AD5A0C201DECA0B500707054 /* PerformanceLogging.h */,
 				37C738E81EDBD2ED003F2B0B /* PerformanceMark.h */,
 				37C738EA1EDBD381003F2B0B /* PerformanceMeasure.h */,
+				0F850FE21ED7C18300FB77A7 /* PerformanceLoggingClient.h */,
+				0FF2E80C1EE0D430009EABD4 /* PerformanceLoggingClient.cpp */,
 				83FE90251E307C1C003E9199 /* PerformanceMonitor.cpp */,
 				83FE90261E307C1C003E9199 /* PerformanceMonitor.h */,
 				8AF4E55211DC5A36000ED3DE /* PerformanceNavigation.cpp */,
@@ -29973,6 +29979,7 @@
 				9B2D8A7914997CCF00ECEF3E /* UndoStep.h in Headers */,
 				A863E2011343412000274926 /* UnicodeBidi.h in Headers */,
 				518864E11BBAF57400E540C9 /* UniqueIDBDatabase.h in Headers */,
+				0F850FE31ED7C18300FB77A7 /* PerformanceLoggingClient.h in Headers */,
 				5198F7A51BBDB79300E2CC5F /* UniqueIDBDatabaseConnection.h in Headers */,
 				5198F7A91BBDD38500E2CC5F /* UniqueIDBDatabaseTransaction.h in Headers */,
 				E4AFCFA50DAF29A300F5F55C /* UnitBezier.h in Headers */,
@@ -33208,6 +33215,7 @@
 				FD31603512B0267600C1A359 /* ScriptProcessorNode.cpp in Sources */,
 				8A413AE11207BBA50082016E /* ScriptRunner.cpp in Sources */,
 				4127D5370F8AAB1D00E424F5 /* ScriptState.cpp in Sources */,
+				0FF2E80D1EE0D430009EABD4 /* PerformanceLoggingClient.cpp in Sources */,
 				BC8AE34E12EA096A00EB3AE6 /* ScrollableArea.cpp in Sources */,
 				5D925B670F64D4DD00B847F0 /* ScrollAlignment.cpp in Sources */,
 				CA3BF67C10D99BAE00E6CE53 /* ScrollAnimator.cpp in Sources */,

Modified: trunk/Source/WebCore/page/Page.cpp (217736 => 217737)


--- trunk/Source/WebCore/page/Page.cpp	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/page/Page.cpp	2017-06-02 23:06:13 UTC (rev 217737)
@@ -70,6 +70,7 @@
 #include "PageDebuggable.h"
 #include "PageGroup.h"
 #include "PageOverlayController.h"
+#include "PerformanceLoggingClient.h"
 #include "PerformanceMonitor.h"
 #include "PlatformMediaSessionManager.h"
 #include "PlugInClient.h"
@@ -210,6 +211,7 @@
     , m_plugInClient(pageConfiguration.plugInClient)
     , m_validationMessageClient(WTFMove(pageConfiguration.validationMessageClient))
     , m_diagnosticLoggingClient(WTFMove(pageConfiguration.diagnosticLoggingClient))
+    , m_performanceLoggingClient(WTFMove(pageConfiguration.performanceLoggingClient))
     , m_webGLStateTracker(WTFMove(pageConfiguration.webGLStateTracker))
     , m_libWebRTCProvider(WTFMove(pageConfiguration.libWebRTCProvider))
     , m_openedByDOM(false)
@@ -307,6 +309,7 @@
 
     m_validationMessageClient = nullptr;
     m_diagnosticLoggingClient = nullptr;
+    m_performanceLoggingClient = nullptr;
     m_mainFrame->setView(nullptr);
     setGroupName(String());
     allPages->remove(this);

Modified: trunk/Source/WebCore/page/Page.h (217736 => 217737)


--- trunk/Source/WebCore/page/Page.h	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/page/Page.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -109,6 +109,7 @@
 class PageConsoleClient;
 class PageDebuggable;
 class PageGroup;
+class PerformanceLoggingClient;
 class PerformanceMonitor;
 class PlugInClient;
 class PluginData;
@@ -370,6 +371,8 @@
 
     WEBCORE_EXPORT DiagnosticLoggingClient& diagnosticLoggingClient() const;
 
+    PerformanceLoggingClient* performanceLoggingClient() const { return m_performanceLoggingClient.get(); }
+
     // Notifications when the Page starts and stops being presented via a native window.
     WEBCORE_EXPORT void setActivityState(ActivityState::Flags);
     ActivityState::Flags activityState() const { return m_activityState; }
@@ -669,6 +672,8 @@
     PlugInClient* m_plugInClient;
     std::unique_ptr<ValidationMessageClient> m_validationMessageClient;
     std::unique_ptr<DiagnosticLoggingClient> m_diagnosticLoggingClient;
+    std::unique_ptr<PerformanceLoggingClient> m_performanceLoggingClient;
+    
     std::unique_ptr<WebGLStateTracker> m_webGLStateTracker;
 
     UniqueRef<LibWebRTCProvider> m_libWebRTCProvider;

Modified: trunk/Source/WebCore/page/PageConfiguration.cpp (217736 => 217737)


--- trunk/Source/WebCore/page/PageConfiguration.cpp	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/page/PageConfiguration.cpp	2017-06-02 23:06:13 UTC (rev 217737)
@@ -32,6 +32,7 @@
 #include "DiagnosticLoggingClient.h"
 #include "EditorClient.h"
 #include "LibWebRTCProvider.h"
+#include "PerformanceLoggingClient.h"
 #include "PluginInfoProvider.h"
 #include "SocketProvider.h"
 #include "StorageNamespaceProvider.h"

Modified: trunk/Source/WebCore/page/PageConfiguration.h (217736 => 217737)


--- trunk/Source/WebCore/page/PageConfiguration.h	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/page/PageConfiguration.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -44,6 +44,7 @@
 class InspectorClient;
 class LibWebRTCProvider;
 class PaymentCoordinatorClient;
+class PerformanceLoggingClient;
 class PlugInClient;
 class PluginInfoProvider;
 class ProgressTrackerClient;
@@ -81,6 +82,7 @@
     std::unique_ptr<ValidationMessageClient> validationMessageClient;
     FrameLoaderClient* loaderClientForMainFrame { nullptr };
     std::unique_ptr<DiagnosticLoggingClient> diagnosticLoggingClient;
+    std::unique_ptr<PerformanceLoggingClient> performanceLoggingClient;
     std::unique_ptr<WebGLStateTracker> webGLStateTracker;
 
     RefPtr<ApplicationCacheStorage> applicationCacheStorage;

Added: trunk/Source/WebCore/page/PerformanceLoggingClient.cpp (0 => 217737)


--- trunk/Source/WebCore/page/PerformanceLoggingClient.cpp	                        (rev 0)
+++ trunk/Source/WebCore/page/PerformanceLoggingClient.cpp	2017-06-02 23:06:13 UTC (rev 217737)
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2017 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "PerformanceLoggingClient.h"
+
+#include "ScrollingCoordinator.h"
+#include <wtf/text/StringBuilder.h>
+
+namespace WebCore {
+
+String PerformanceLoggingClient::synchronousScrollingReasonsAsString(SynchronousScrollingReasons synchronousScrollingReasons)
+{
+    if (!synchronousScrollingReasons)
+        return emptyString();
+
+    StringBuilder reasons;
+
+    if (synchronousScrollingReasons & ScrollingCoordinator::ForcedOnMainThread)
+        reasons.appendLiteral("forced,");
+    if (synchronousScrollingReasons & ScrollingCoordinator::HasSlowRepaintObjects)
+        reasons.appendLiteral("slow-repaint objects,");
+    if (synchronousScrollingReasons & ScrollingCoordinator::HasViewportConstrainedObjectsWithoutSupportingFixedLayers)
+        reasons.appendLiteral("viewport-constrained objects,");
+    if (synchronousScrollingReasons & ScrollingCoordinator::HasNonLayerViewportConstrainedObjects)
+        reasons.appendLiteral("non-layer viewport-constrained objects,");
+    if (synchronousScrollingReasons & ScrollingCoordinator::IsImageDocument)
+        reasons.appendLiteral("image document,");
+
+    // Strip the trailing comma.
+    return reasons.toString().left(reasons.length() - 1);
+}
+
+} // namespace WebCore

Added: trunk/Source/WebCore/page/PerformanceLoggingClient.h (0 => 217737)


--- trunk/Source/WebCore/page/PerformanceLoggingClient.h	                        (rev 0)
+++ trunk/Source/WebCore/page/PerformanceLoggingClient.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2017 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <wtf/FastMalloc.h>
+#include <wtf/MonotonicTime.h>
+#include <wtf/text/WTFString.h>
+
+namespace WebCore {
+
+typedef unsigned SynchronousScrollingReasons;
+
+class PerformanceLoggingClient {
+    WTF_MAKE_FAST_ALLOCATED;
+public:
+    enum class ScrollingEvent {
+        ExposedTilelessArea,
+        FilledTile,
+        SwitchedScrollingMode,
+    };
+    virtual void logScrollingEvent(ScrollingEvent, MonotonicTime, uint64_t) = 0;
+
+    WEBCORE_EXPORT static String synchronousScrollingReasonsAsString(SynchronousScrollingReasons);
+
+    virtual ~PerformanceLoggingClient() { }
+};
+
+} // namespace WebCore

Modified: trunk/Source/WebCore/page/scrolling/AsyncScrollingCoordinator.cpp (217736 => 217737)


--- trunk/Source/WebCore/page/scrolling/AsyncScrollingCoordinator.cpp	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/page/scrolling/AsyncScrollingCoordinator.cpp	2017-06-02 23:06:13 UTC (rev 217737)
@@ -37,6 +37,7 @@
 #include "Logging.h"
 #include "MainFrame.h"
 #include "Page.h"
+#include "PerformanceLoggingClient.h"
 #include "ScrollAnimator.h"
 #include "ScrollingConstraints.h"
 #include "ScrollingStateFixedNode.h"
@@ -694,7 +695,19 @@
     }
 }
 #endif
-    
+
+void AsyncScrollingCoordinator::reportExposedUnfilledArea(MonotonicTime timestamp, unsigned unfilledArea)
+{
+    if (m_page && m_page->performanceLoggingClient())
+        m_page->performanceLoggingClient()->logScrollingEvent(PerformanceLoggingClient::ScrollingEvent::ExposedTilelessArea, timestamp, unfilledArea);
+}
+
+void AsyncScrollingCoordinator::reportSynchronousScrollingReasonsChanged(MonotonicTime timestamp, SynchronousScrollingReasons reasons)
+{
+    if (m_page && m_page->performanceLoggingClient())
+        m_page->performanceLoggingClient()->logScrollingEvent(PerformanceLoggingClient::ScrollingEvent::SwitchedScrollingMode, timestamp, reasons);
+}
+
 } // namespace WebCore
 
 #endif // ENABLE(ASYNC_SCROLLING)

Modified: trunk/Source/WebCore/page/scrolling/AsyncScrollingCoordinator.h (217736 => 217737)


--- trunk/Source/WebCore/page/scrolling/AsyncScrollingCoordinator.h	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/page/scrolling/AsyncScrollingCoordinator.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -65,6 +65,9 @@
 
     WEBCORE_EXPORT void updateExpectsWheelEventTestTriggerWithFrameView(const FrameView&) override;
 
+    void reportExposedUnfilledArea(MonotonicTime, unsigned unfilledArea);
+    void reportSynchronousScrollingReasonsChanged(MonotonicTime, SynchronousScrollingReasons);
+
 protected:
     WEBCORE_EXPORT AsyncScrollingCoordinator(Page*);
 

Modified: trunk/Source/WebCore/page/scrolling/ScrollingTree.h (217736 => 217737)


--- trunk/Source/WebCore/page/scrolling/ScrollingTree.h	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/page/scrolling/ScrollingTree.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -93,6 +93,9 @@
 
     WEBCORE_EXPORT virtual void currentSnapPointIndicesDidChange(ScrollingNodeID, unsigned horizontal, unsigned vertical) = 0;
 
+    WEBCORE_EXPORT virtual void reportSynchronousScrollingReasonsChanged(MonotonicTime, SynchronousScrollingReasons) { }
+    WEBCORE_EXPORT virtual void reportExposedUnfilledArea(MonotonicTime, unsigned /* unfilledArea */) { }
+
     FloatPoint mainFrameScrollPosition();
     
 #if PLATFORM(IOS)

Modified: trunk/Source/WebCore/page/scrolling/ThreadedScrollingTree.cpp (217736 => 217737)


--- trunk/Source/WebCore/page/scrolling/ThreadedScrollingTree.cpp	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/page/scrolling/ThreadedScrollingTree.cpp	2017-06-02 23:06:13 UTC (rev 217737)
@@ -105,6 +105,20 @@
     });
 }
 
+void ThreadedScrollingTree::reportSynchronousScrollingReasonsChanged(MonotonicTime timestamp, SynchronousScrollingReasons reasons)
+{
+    RunLoop::main().dispatch([scrollingCoordinator = m_scrollingCoordinator, timestamp, reasons] {
+        scrollingCoordinator->reportSynchronousScrollingReasonsChanged(timestamp, reasons);
+    });
+}
+
+void ThreadedScrollingTree::reportExposedUnfilledArea(MonotonicTime timestamp, unsigned unfilledArea)
+{
+    RunLoop::main().dispatch([scrollingCoordinator = m_scrollingCoordinator, timestamp, unfilledArea] {
+        scrollingCoordinator->reportExposedUnfilledArea(timestamp, unfilledArea);
+    });
+}
+
 void ThreadedScrollingTree::currentSnapPointIndicesDidChange(ScrollingNodeID nodeID, unsigned horizontal, unsigned vertical)
 {
     if (!m_scrollingCoordinator)

Modified: trunk/Source/WebCore/page/scrolling/ThreadedScrollingTree.h (217736 => 217737)


--- trunk/Source/WebCore/page/scrolling/ThreadedScrollingTree.h	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/page/scrolling/ThreadedScrollingTree.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -66,6 +66,9 @@
     void removeTestDeferralForReason(WheelEventTestTrigger::ScrollableAreaIdentifier, WheelEventTestTrigger::DeferTestTriggerReason) override;
 #endif
 
+    void reportExposedUnfilledArea(MonotonicTime, unsigned unfilledArea) override;
+    void reportSynchronousScrollingReasonsChanged(MonotonicTime, SynchronousScrollingReasons) override;
+
 private:
     bool isThreadedScrollingTree() const override { return true; }
 

Modified: trunk/Source/WebCore/page/scrolling/mac/ScrollingTreeFrameScrollingNodeMac.h (217736 => 217737)


--- trunk/Source/WebCore/page/scrolling/mac/ScrollingTreeFrameScrollingNodeMac.h	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/page/scrolling/mac/ScrollingTreeFrameScrollingNodeMac.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -93,7 +93,7 @@
     FloatSize viewportSize() const override;
 #endif
 
-    void logExposedUnfilledArea();
+    unsigned exposedUnfilledArea() const;
 
     ScrollController m_scrollController;
 

Modified: trunk/Source/WebCore/page/scrolling/mac/ScrollingTreeFrameScrollingNodeMac.mm (217736 => 217737)


--- trunk/Source/WebCore/page/scrolling/mac/ScrollingTreeFrameScrollingNodeMac.mm	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/page/scrolling/mac/ScrollingTreeFrameScrollingNodeMac.mm	2017-06-02 23:06:13 UTC (rev 217737)
@@ -44,13 +44,10 @@
 #import <QuartzCore/QuartzCore.h>
 #import <wtf/CurrentTime.h>
 #import <wtf/Deque.h>
-#import <wtf/text/StringBuilder.h>
 #import <wtf/text/CString.h>
 
 namespace WebCore {
 
-static void logThreadedScrollingMode(unsigned synchronousScrollingReasons);
-
 Ref<ScrollingTreeFrameScrollingNode> ScrollingTreeFrameScrollingNodeMac::create(ScrollingTree& scrollingTree, ScrollingNodeID nodeID)
 {
     return adoptRef(*new ScrollingTreeFrameScrollingNodeMac(scrollingTree, nodeID));
@@ -149,10 +146,8 @@
         logScrollingMode = true;
     }
 
-    if (logScrollingMode) {
-        if (scrollingTree().scrollingPerformanceLoggingEnabled())
-            logThreadedScrollingMode(synchronousScrollingReasons());
-    }
+    if (logScrollingMode && scrollingTree().scrollingPerformanceLoggingEnabled())
+        scrollingTree().reportSynchronousScrollingReasonsChanged(MonotonicTime::now(), synchronousScrollingReasons());
 
 #if ENABLE(CSS_SCROLL_SNAP)
     if (scrollingStateNode.hasChangedProperty(ScrollingStateFrameScrollingNode::HorizontalSnapOffsets) || scrollingStateNode.hasChangedProperty(ScrollingStateFrameScrollingNode::HorizontalSnapOffsetRanges))
@@ -389,8 +384,13 @@
 
     ScrollingTreeFrameScrollingNode::setScrollPosition(roundedPosition);
 
-    if (scrollingTree().scrollingPerformanceLoggingEnabled())
-        logExposedUnfilledArea();
+    if (scrollingTree().scrollingPerformanceLoggingEnabled()) {
+        unsigned unfilledArea = exposedUnfilledArea();
+        if (unfilledArea || m_lastScrollHadUnfilledPixels)
+            scrollingTree().reportExposedUnfilledArea(MonotonicTime::now(), unfilledArea);
+
+        m_lastScrollHadUnfilledPixels = unfilledArea;
+    }
 }
 
 void ScrollingTreeFrameScrollingNodeMac::setScrollPositionWithoutContentEdgeConstraints(const FloatPoint& scrollPosition)
@@ -529,7 +529,7 @@
     scrollingTree().setMainFramePinState(pinnedToTheLeft, pinnedToTheRight, pinnedToTheTop, pinnedToTheBottom);
 }
 
-void ScrollingTreeFrameScrollingNodeMac::logExposedUnfilledArea()
+unsigned ScrollingTreeFrameScrollingNodeMac::exposedUnfilledArea() const
 {
     Region paintedVisibleTiles;
 
@@ -555,38 +555,9 @@
 
     FloatPoint scrollPosition = this->scrollPosition();
     FloatRect viewPortRect(FloatPoint(), scrollableAreaSize());
-    unsigned unfilledArea = TileController::blankPixelCountForTiles(tiles, viewPortRect, IntPoint(-scrollPosition.x(), -scrollPosition.y()));
-
-    if (unfilledArea || m_lastScrollHadUnfilledPixels)
-        WTFLogAlways("SCROLLING: Exposed tileless area. Time: %f Unfilled Pixels: %u\n", WTF::monotonicallyIncreasingTime(), unfilledArea);
-
-    m_lastScrollHadUnfilledPixels = unfilledArea;
+    return TileController::blankPixelCountForTiles(tiles, viewPortRect, IntPoint(-scrollPosition.x(), -scrollPosition.y()));
 }
 
-static void logThreadedScrollingMode(unsigned synchronousScrollingReasons)
-{
-    if (synchronousScrollingReasons) {
-        StringBuilder reasonsDescription;
-
-        if (synchronousScrollingReasons & ScrollingCoordinator::ForcedOnMainThread)
-            reasonsDescription.appendLiteral("forced,");
-        if (synchronousScrollingReasons & ScrollingCoordinator::HasSlowRepaintObjects)
-            reasonsDescription.appendLiteral("slow-repaint objects,");
-        if (synchronousScrollingReasons & ScrollingCoordinator::HasViewportConstrainedObjectsWithoutSupportingFixedLayers)
-            reasonsDescription.appendLiteral("viewport-constrained objects,");
-        if (synchronousScrollingReasons & ScrollingCoordinator::HasNonLayerViewportConstrainedObjects)
-            reasonsDescription.appendLiteral("non-layer viewport-constrained objects,");
-        if (synchronousScrollingReasons & ScrollingCoordinator::IsImageDocument)
-            reasonsDescription.appendLiteral("image document,");
-
-        // Strip the trailing comma.
-        String reasonsDescriptionTrimmed = reasonsDescription.toString().left(reasonsDescription.length() - 1);
-
-        WTFLogAlways("SCROLLING: Switching to main-thread scrolling mode. Time: %f Reason(s): %s\n", WTF::monotonicallyIncreasingTime(), reasonsDescriptionTrimmed.ascii().data());
-    } else
-        WTFLogAlways("SCROLLING: Switching to threaded scrolling mode. Time: %f\n", WTF::monotonicallyIncreasingTime());
-}
-
 #if ENABLE(CSS_SCROLL_SNAP)
 FloatPoint ScrollingTreeFrameScrollingNodeMac::scrollOffset() const
 {

Modified: trunk/Source/WebCore/platform/graphics/GraphicsLayerClient.h (217736 => 217737)


--- trunk/Source/WebCore/platform/graphics/GraphicsLayerClient.h	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/platform/graphics/GraphicsLayerClient.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -129,6 +129,8 @@
 
     virtual bool needsIOSDumpRenderTreeMainFrameRenderViewLayerIsAlwaysOpaqueHack(const GraphicsLayer&) const { return false; }
 
+    virtual void logFilledVisibleFreshTile(unsigned) { };
+
 #ifndef NDEBUG
     // RenderLayerBacking overrides this to verify that it is not
     // currently painting contents. An ASSERT fails, if it is.

Modified: trunk/Source/WebCore/platform/graphics/ca/GraphicsLayerCA.cpp (217736 => 217737)


--- trunk/Source/WebCore/platform/graphics/ca/GraphicsLayerCA.cpp	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/platform/graphics/ca/GraphicsLayerCA.cpp	2017-06-02 23:06:13 UTC (rev 217737)
@@ -1620,6 +1620,11 @@
     return client().useGiantTiles();
 }
 
+void GraphicsLayerCA::platformCALayerLogFilledVisibleFreshTile(unsigned blankPixelCount)
+{
+    client().logFilledVisibleFreshTile(blankPixelCount);
+}
+
 static PlatformCALayer::LayerType layerTypeForCustomBackdropAppearance(GraphicsLayer::CustomAppearance appearance)
 {
     return appearance == GraphicsLayer::LightBackdropAppearance ? PlatformCALayer::LayerTypeLightSystemBackdropLayer : PlatformCALayer::LayerTypeDarkSystemBackdropLayer;

Modified: trunk/Source/WebCore/platform/graphics/ca/GraphicsLayerCA.h (217736 => 217737)


--- trunk/Source/WebCore/platform/graphics/ca/GraphicsLayerCA.h	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/platform/graphics/ca/GraphicsLayerCA.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -201,6 +201,7 @@
     WEBCORE_EXPORT bool platformCALayerShouldAggressivelyRetainTiles(PlatformCALayer*) const override;
     WEBCORE_EXPORT bool platformCALayerShouldTemporarilyRetainTileCohorts(PlatformCALayer*) const override;
     WEBCORE_EXPORT bool platformCALayerUseGiantTiles() const override;
+    WEBCORE_EXPORT void platformCALayerLogFilledVisibleFreshTile(unsigned) override;
 
     bool isCommittingChanges() const override { return m_isCommittingChanges; }
     bool isUsingDisplayListDrawing(PlatformCALayer*) const override { return m_usesDisplayListDrawing; }

Modified: trunk/Source/WebCore/platform/graphics/ca/PlatformCALayerClient.h (217736 => 217737)


--- trunk/Source/WebCore/platform/graphics/ca/PlatformCALayerClient.h	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/platform/graphics/ca/PlatformCALayerClient.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -65,6 +65,8 @@
 
     virtual bool isUsingDisplayListDrawing(PlatformCALayer*) const { return false; }
 
+    virtual void platformCALayerLogFilledVisibleFreshTile(unsigned /* blankPixelCount */) { }
+
 protected:
     virtual ~PlatformCALayerClient() {}
 };

Modified: trunk/Source/WebCore/platform/graphics/ca/TileController.cpp (217736 => 217737)


--- trunk/Source/WebCore/platform/graphics/ca/TileController.cpp	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/platform/graphics/ca/TileController.cpp	2017-06-02 23:06:13 UTC (rev 217737)
@@ -777,6 +777,11 @@
 }
 #endif
 
+void TileController::logFilledVisibleFreshTile(unsigned blankPixelCount)
+{
+    owningGraphicsLayer()->platformCALayerLogFilledVisibleFreshTile(blankPixelCount);
+}
+
 } // namespace WebCore
 
 #endif

Modified: trunk/Source/WebCore/platform/graphics/ca/TileController.h (217736 => 217737)


--- trunk/Source/WebCore/platform/graphics/ca/TileController.h	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/platform/graphics/ca/TileController.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -23,8 +23,7 @@
  * THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef TileController_h
-#define TileController_h
+#pragma once
 
 #include "FloatRect.h"
 #include "IntRect.h"
@@ -138,6 +137,8 @@
     const TileGrid& tileGrid() const { return *m_tileGrid; }
 
     WEBCORE_EXPORT Vector<RefPtr<PlatformCALayer>> containerLayers();
+    
+    void logFilledVisibleFreshTile(unsigned blankPixelCount);
 
 private:
     TileGrid& tileGrid() { return *m_tileGrid; }
@@ -212,13 +213,12 @@
 
     int m_marginSize { kDefaultTileSize };
 
+    Scrollability m_scrollability { HorizontallyScrollable | VerticallyScrollable };
+
     // m_marginTop and m_marginBottom are the height in pixels of the top and bottom margin tiles. The width
     // of those tiles will be equivalent to the width of the other tiles in the grid. m_marginRight and
     // m_marginLeft are the width in pixels of the right and left margin tiles, respectively. The height of
     // those tiles will be equivalent to the height of the other tiles in the grid.
-    
-    Scrollability m_scrollability { HorizontallyScrollable | VerticallyScrollable };
-    
     BoxExtent<bool> m_marginEdges;
     
     bool m_isInWindow { false };
@@ -240,4 +240,3 @@
 
 } // namespace WebCore
 
-#endif // TileController_h

Modified: trunk/Source/WebCore/platform/graphics/ca/TileGrid.cpp (217736 => 217737)


--- trunk/Source/WebCore/platform/graphics/ca/TileGrid.cpp	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/platform/graphics/ca/TileGrid.cpp	2017-06-02 23:06:13 UTC (rev 217737)
@@ -739,7 +739,7 @@
         visiblePart.intersect(m_controller.visibleRect());
 
         if (repaintCount == 1 && !visiblePart.isEmpty())
-            WTFLogAlways("SCROLLING: Filled visible fresh tile. Time: %f Unfilled Pixels: %u\n", WTF::monotonicallyIncreasingTime(), blankPixelCount());
+            m_controller.logFilledVisibleFreshTile(blankPixelCount());
     }
 }
 

Modified: trunk/Source/WebCore/platform/graphics/ca/TileGrid.h (217736 => 217737)


--- trunk/Source/WebCore/platform/graphics/ca/TileGrid.h	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/platform/graphics/ca/TileGrid.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -23,8 +23,7 @@
  * THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef TileGrid_h
-#define TileGrid_h
+#pragma once
 
 #include "IntPointHash.h"
 #include "IntRect.h"
@@ -178,4 +177,4 @@
 };
 
 }
-#endif
+

Modified: trunk/Source/WebCore/rendering/RenderLayerBacking.cpp (217736 => 217737)


--- trunk/Source/WebCore/rendering/RenderLayerBacking.cpp	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/rendering/RenderLayerBacking.cpp	2017-06-02 23:06:13 UTC (rev 217737)
@@ -47,6 +47,7 @@
 #include "Logging.h"
 #include "MainFrame.h"
 #include "Page.h"
+#include "PerformanceLoggingClient.h"
 #include "PluginViewBase.h"
 #include "ProgressTracker.h"
 #include "RenderFlowThread.h"
@@ -2695,6 +2696,12 @@
     return renderer().settings().useGiantTiles();
 }
 
+void RenderLayerBacking::logFilledVisibleFreshTile(unsigned blankPixelCount)
+{
+    if (PerformanceLoggingClient* loggingClient = renderer().page().performanceLoggingClient())
+        loggingClient->logScrollingEvent(PerformanceLoggingClient::ScrollingEvent::FilledTile, MonotonicTime::now(), blankPixelCount);
+}
+
 #ifndef NDEBUG
 void RenderLayerBacking::verifyNotPainting()
 {

Modified: trunk/Source/WebCore/rendering/RenderLayerBacking.h (217736 => 217737)


--- trunk/Source/WebCore/rendering/RenderLayerBacking.h	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebCore/rendering/RenderLayerBacking.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -216,6 +216,7 @@
     bool shouldAggressivelyRetainTiles(const GraphicsLayer*) const override;
     bool shouldTemporarilyRetainTileCohorts(const GraphicsLayer*) const override;
     bool useGiantTiles() const override;
+    void logFilledVisibleFreshTile(unsigned) override;
     bool needsPixelAligment() const override { return !m_isMainFrameRenderViewLayer; }
 
     LayoutSize subpixelOffsetFromRenderer() const { return m_subpixelOffsetFromRenderer; }

Modified: trunk/Source/WebKit2/CMakeLists.txt (217736 => 217737)


--- trunk/Source/WebKit2/CMakeLists.txt	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebKit2/CMakeLists.txt	2017-06-02 23:06:13 UTC (rev 217737)
@@ -554,6 +554,7 @@
     WebProcess/WebCoreSupport/WebGeolocationClient.cpp
     WebProcess/WebCoreSupport/WebInspectorClient.cpp
     WebProcess/WebCoreSupport/WebNotificationClient.cpp
+    WebProcess/WebCoreSupport/WebPerformanceLoggingClient.cpp
     WebProcess/WebCoreSupport/WebPlatformStrategies.cpp
     WebProcess/WebCoreSupport/WebPlugInClient.cpp
     WebProcess/WebCoreSupport/WebPopupMenu.cpp

Modified: trunk/Source/WebKit2/ChangeLog (217736 => 217737)


--- trunk/Source/WebKit2/ChangeLog	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebKit2/ChangeLog	2017-06-02 23:06:13 UTC (rev 217737)
@@ -1,3 +1,31 @@
+2017-06-02  Simon Fraser  <simon.fra...@apple.com>
+
+        All scroll peformance logging should happen in the UI process
+        https://bugs.webkit.org/show_bug.cgi?id=172874
+        rdar://problem/24474830
+
+        Reviewed by Tim Horton.
+
+        Printing to stdout from the WebProcess doesn't show up anywhere in non-development builds,
+        so we have to log from the UI process.
+
+        Achieve this by adding a PerformanceLoggingClient to Page which forwards messages to
+        WebPageProxy, which prints them with the same format they had before. Some plumbing through
+        PlatformCALayerClient and GraphicsLayerClient is required to get messages from TileControllers
+        through to something that can get to Page.
+
+        * UIProcess/WebPageProxy.cpp:
+        (WebKit::WebPageProxy::logScrollingEvent):
+        * UIProcess/WebPageProxy.h:
+        * UIProcess/WebPageProxy.messages.in:
+        * WebKit2.xcodeproj/project.pbxproj:
+        * WebProcess/WebCoreSupport/WebPerformanceLoggingClient.cpp: Added.
+        (WebKit::WebPerformanceLoggingClient::WebPerformanceLoggingClient):
+        (WebKit::WebPerformanceLoggingClient::logScrollingEvent):
+        * WebProcess/WebCoreSupport/WebPerformanceLoggingClient.h: Added.
+        * WebProcess/WebPage/WebPage.cpp:
+        (WebKit::m_cpuLimit):
+
 2017-06-02  Chris Dumez  <cdu...@apple.com>
 
         REGRESSION (r206386): Xactimate Website Crashes @ com.apple.WebKit: WebKit::NPRuntimeObjectMap::convertJSValueToNPVariant + 255

Modified: trunk/Source/WebKit2/UIProcess/WebPageProxy.cpp (217736 => 217737)


--- trunk/Source/WebKit2/UIProcess/WebPageProxy.cpp	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebKit2/UIProcess/WebPageProxy.cpp	2017-06-02 23:06:13 UTC (rev 217737)
@@ -124,6 +124,7 @@
 #include <WebCore/JSDOMExceptionHandling.h>
 #include <WebCore/LengthBox.h>
 #include <WebCore/MIMETypeRegistry.h>
+#include <WebCore/PerformanceLoggingClient.h>
 #include <WebCore/PublicSuffix.h>
 #include <WebCore/RenderEmbeddedObject.h>
 #include <WebCore/SerializedCryptoKeyWrap.h>
@@ -5211,6 +5212,26 @@
     m_diagnosticLoggingClient->logDiagnosticMessageWithEnhancedPrivacy(this, message, description);
 }
 
+void WebPageProxy::logScrollingEvent(uint32_t eventType, MonotonicTime timestamp, uint64_t data)
+{
+    PerformanceLoggingClient::ScrollingEvent event = static_cast<PerformanceLoggingClient::ScrollingEvent>(eventType);
+
+    switch (event) {
+    case PerformanceLoggingClient::ScrollingEvent::ExposedTilelessArea:
+        WTFLogAlways("SCROLLING: Exposed tileless area. Time: %f Unfilled Pixels: %llu\n", timestamp.secondsSinceEpoch().value(), (unsigned long long)data);
+        break;
+    case PerformanceLoggingClient::ScrollingEvent::FilledTile:
+        WTFLogAlways("SCROLLING: Filled visible fresh tile. Time: %f Unfilled Pixels: %llu\n", timestamp.secondsSinceEpoch().value(), (unsigned long long)data);
+        break;
+    case PerformanceLoggingClient::ScrollingEvent::SwitchedScrollingMode:
+        if (data)
+            WTFLogAlways("SCROLLING: Switching to main-thread scrolling mode. Time: %f Reason(s): %s\n", timestamp.secondsSinceEpoch().value(), PerformanceLoggingClient::synchronousScrollingReasonsAsString(data).utf8().data());
+        else
+            WTFLogAlways("SCROLLING: Switching to threaded scrolling mode. Time: %f\n", timestamp.secondsSinceEpoch().value());
+        break;
+    }
+}
+
 void WebPageProxy::rectForCharacterRangeCallback(const IntRect& rect, const EditingRange& actualRange, uint64_t callbackID)
 {
     MESSAGE_CHECK(actualRange.isValid());

Modified: trunk/Source/WebKit2/UIProcess/WebPageProxy.h (217736 => 217737)


--- trunk/Source/WebKit2/UIProcess/WebPageProxy.h	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebKit2/UIProcess/WebPageProxy.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -82,6 +82,7 @@
 #include <memory>
 #include <wtf/HashMap.h>
 #include <wtf/HashSet.h>
+#include <wtf/MonotonicTime.h>
 #include <wtf/Ref.h>
 #include <wtf/RefPtr.h>
 #include <wtf/Vector.h>
@@ -1108,6 +1109,9 @@
     void logDiagnosticMessageWithValue(const String& message, const String& description, double value, unsigned significantFigures, WebCore::ShouldSample);
     void logDiagnosticMessageWithEnhancedPrivacy(const String& message, const String& description, WebCore::ShouldSample);
 
+    // Performance logging.
+    void logScrollingEvent(uint32_t eventType, MonotonicTime, uint64_t);
+
     // Form validation messages.
     void showValidationMessage(const WebCore::IntRect& anchorClientRect, const String& message);
     void hideValidationMessage();

Modified: trunk/Source/WebKit2/UIProcess/WebPageProxy.messages.in (217736 => 217737)


--- trunk/Source/WebKit2/UIProcess/WebPageProxy.messages.in	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebKit2/UIProcess/WebPageProxy.messages.in	2017-06-02 23:06:13 UTC (rev 217737)
@@ -230,6 +230,9 @@
     LogDiagnosticMessageWithValue(String message, String description, double value, unsigned significantFigures, enum WebCore::ShouldSample shouldSample)
     LogDiagnosticMessageWithEnhancedPrivacy(String message, String description, enum WebCore::ShouldSample shouldSample)
 
+    # Performance logging
+    LogScrollingEvent(uint32_t eventType, MonotonicTime timestamp, uint64_t data)
+
     # Editor notifications
     EditorStateChanged(struct WebKit::EditorState editorState)
     CompositionWasCanceled()

Modified: trunk/Source/WebKit2/WebKit2.xcodeproj/project.pbxproj (217736 => 217737)


--- trunk/Source/WebKit2/WebKit2.xcodeproj/project.pbxproj	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebKit2/WebKit2.xcodeproj/project.pbxproj	2017-06-02 23:06:13 UTC (rev 217737)
@@ -86,6 +86,8 @@
 		0F5947A8187B517600437857 /* RemoteScrollingCoordinatorMessages.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F5947A6187B517600437857 /* RemoteScrollingCoordinatorMessages.h */; };
 		0F5E200318E77051003EC3E5 /* PlatformCAAnimationRemote.mm in Sources */ = {isa = PBXBuildFile; fileRef = 0F5E200118E77051003EC3E5 /* PlatformCAAnimationRemote.mm */; };
 		0F5E200418E77051003EC3E5 /* PlatformCAAnimationRemote.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F5E200218E77051003EC3E5 /* PlatformCAAnimationRemote.h */; };
+		0F850FE61ED7C39F00FB77A7 /* WebPerformanceLoggingClient.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 0F850FE41ED7C39F00FB77A7 /* WebPerformanceLoggingClient.cpp */; };
+		0F850FE71ED7C39F00FB77A7 /* WebPerformanceLoggingClient.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F850FE51ED7C39F00FB77A7 /* WebPerformanceLoggingClient.h */; };
 		0F931C1C18C5711900DBA7C3 /* ScrollingTreeOverflowScrollingNodeIOS.h in Headers */ = {isa = PBXBuildFile; fileRef = 0F931C1A18C5711900DBA7C3 /* ScrollingTreeOverflowScrollingNodeIOS.h */; };
 		0F931C1D18C5711900DBA7C3 /* ScrollingTreeOverflowScrollingNodeIOS.mm in Sources */ = {isa = PBXBuildFile; fileRef = 0F931C1B18C5711900DBA7C3 /* ScrollingTreeOverflowScrollingNodeIOS.mm */; };
 		0FB659231208B4DB0044816C /* DrawingAreaInfo.h in Headers */ = {isa = PBXBuildFile; fileRef = 0FB659221208B4DB0044816C /* DrawingAreaInfo.h */; };
@@ -2240,6 +2242,8 @@
 		0F5E200218E77051003EC3E5 /* PlatformCAAnimationRemote.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = PlatformCAAnimationRemote.h; sourceTree = "<group>"; };
 		0F707C771A1FEE8300DA7A45 /* RemoteLayerTreeScrollingPerformanceData.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = RemoteLayerTreeScrollingPerformanceData.mm; sourceTree = "<group>"; };
 		0F707C791A1FEEA300DA7A45 /* RemoteLayerTreeScrollingPerformanceData.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RemoteLayerTreeScrollingPerformanceData.h; sourceTree = "<group>"; };
+		0F850FE41ED7C39F00FB77A7 /* WebPerformanceLoggingClient.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = WebPerformanceLoggingClient.cpp; sourceTree = "<group>"; };
+		0F850FE51ED7C39F00FB77A7 /* WebPerformanceLoggingClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WebPerformanceLoggingClient.h; sourceTree = "<group>"; };
 		0F931C1A18C5711900DBA7C3 /* ScrollingTreeOverflowScrollingNodeIOS.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = ScrollingTreeOverflowScrollingNodeIOS.h; path = Scrolling/ios/ScrollingTreeOverflowScrollingNodeIOS.h; sourceTree = "<group>"; };
 		0F931C1B18C5711900DBA7C3 /* ScrollingTreeOverflowScrollingNodeIOS.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ScrollingTreeOverflowScrollingNodeIOS.mm; path = Scrolling/ios/ScrollingTreeOverflowScrollingNodeIOS.mm; sourceTree = "<group>"; };
 		0FB659221208B4DB0044816C /* DrawingAreaInfo.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = DrawingAreaInfo.h; sourceTree = "<group>"; };
@@ -6592,6 +6596,8 @@
 				31099968146C71F50029DEB9 /* WebNotificationClient.h */,
 				512127C11908239A00DAF35C /* WebPasteboardOverrides.cpp */,
 				512127C21908239A00DAF35C /* WebPasteboardOverrides.h */,
+				0F850FE41ED7C39F00FB77A7 /* WebPerformanceLoggingClient.cpp */,
+				0F850FE51ED7C39F00FB77A7 /* WebPerformanceLoggingClient.h */,
 				1A3E736011CC2659007BD539 /* WebPlatformStrategies.cpp */,
 				1A3E735F11CC2659007BD539 /* WebPlatformStrategies.h */,
 				31D5929C166E05FF00E6BF02 /* WebPlugInClient.cpp */,
@@ -8603,6 +8609,7 @@
 				1AA9BAE1184FFAC7003B6BC6 /* WeakObjCPtr.h in Headers */,
 				CEDA12E3152CD1B300D9E08D /* WebAlternativeTextClient.h in Headers */,
 				9955A6EC1C7980C200EB6A93 /* WebAutomationSession.h in Headers */,
+				0F850FE71ED7C39F00FB77A7 /* WebPerformanceLoggingClient.h in Headers */,
 				99C3AE2D1DADA6AD00AF5C16 /* WebAutomationSessionMacros.h in Headers */,
 				1C0A19581C90068F00FE0EBB /* WebAutomationSessionMessages.h in Headers */,
 				1C0A19471C8FF1A800FE0EBB /* WebAutomationSessionProxy.h in Headers */,
@@ -10288,6 +10295,7 @@
 				BC9BA5041697C45300E44616 /* WebKit2Initialize.cpp in Sources */,
 				51FB08FF1639DE1A00EC324A /* WebLoaderStrategy.cpp in Sources */,
 				CD003A5219D49B5D005ABCE0 /* WebMediaKeyStorageManager.cpp in Sources */,
+				0F850FE61ED7C39F00FB77A7 /* WebPerformanceLoggingClient.cpp in Sources */,
 				C98C48A51B6FD4C300145103 /* WebMediaSessionFocusManager.cpp in Sources */,
 				C9C1833B1B74026A007036A7 /* WebMediaSessionFocusManagerClient.cpp in Sources */,
 				C9CD43971B4B001900239E33 /* WebMediaSessionMetadata.cpp in Sources */,

Copied: trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebPerformanceLoggingClient.cpp (from rev 217736, trunk/Source/WebCore/page/PageConfiguration.cpp) (0 => 217737)


--- trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebPerformanceLoggingClient.cpp	                        (rev 0)
+++ trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebPerformanceLoggingClient.cpp	2017-06-02 23:06:13 UTC (rev 217737)
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2017 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "WebPerformanceLoggingClient.h"
+
+#include "WebCoreArgumentCoders.h"
+#include "WebPage.h"
+#include "WebPageProxyMessages.h"
+
+namespace WebKit {
+
+using namespace WebCore;
+
+WebPerformanceLoggingClient::WebPerformanceLoggingClient(WebPage& page)
+    : m_page(page)
+{
+}
+
+void WebPerformanceLoggingClient::logScrollingEvent(ScrollingEvent event, MonotonicTime timestamp, uint64_t data)
+{
+    m_page.send(Messages::WebPageProxy::LogScrollingEvent(static_cast<uint32_t>(event), timestamp, data));
+}
+
+} // namespace WebKit

Copied: trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebPerformanceLoggingClient.h (from rev 217736, trunk/Source/WebCore/page/PageConfiguration.cpp) (0 => 217737)


--- trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebPerformanceLoggingClient.h	                        (rev 0)
+++ trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebPerformanceLoggingClient.h	2017-06-02 23:06:13 UTC (rev 217737)
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2017 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#pragma once
+
+#include <WebCore/PerformanceLoggingClient.h>
+#include <wtf/Forward.h>
+
+namespace WebKit {
+
+class WebPage;
+
+class WebPerformanceLoggingClient : public WebCore::PerformanceLoggingClient {
+public:
+    WebPerformanceLoggingClient(WebPage&);
+    virtual ~WebPerformanceLoggingClient() = default;
+
+private:
+    void logScrollingEvent(ScrollingEvent, MonotonicTime, uint64_t) override;
+
+    WebPage& m_page;
+};
+
+}

Modified: trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp (217736 => 217737)


--- trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp	2017-06-02 22:20:15 UTC (rev 217736)
+++ trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp	2017-06-02 23:06:13 UTC (rev 217737)
@@ -102,6 +102,7 @@
 #include "WebPageOverlay.h"
 #include "WebPageProxyMessages.h"
 #include "WebPaymentCoordinator.h"
+#include "WebPerformanceLoggingClient.h"
 #include "WebPlugInClient.h"
 #include "WebPluginInfoProvider.h"
 #include "WebPopupMenu.h"
@@ -395,6 +396,8 @@
     pageConfiguration.loaderClientForMainFrame = new WebFrameLoaderClient;
     pageConfiguration.progressTrackerClient = new WebProgressTrackerClient(*this);
     pageConfiguration.diagnosticLoggingClient = std::make_unique<WebDiagnosticLoggingClient>(*this);
+    pageConfiguration.performanceLoggingClient = std::make_unique<WebPerformanceLoggingClient>(*this);
+
     pageConfiguration.webGLStateTracker = std::make_unique<WebGLStateTracker>([this](bool isUsingHighPerformanceWebGL) {
         send(Messages::WebPageProxy::SetIsUsingHighPerformanceWebGL(isUsingHighPerformanceWebGL));
     });
_______________________________________________
webkit-changes mailing list
webkit-changes@lists.webkit.org
https://lists.webkit.org/mailman/listinfo/webkit-changes

Reply via email to