Title: [125970] branches/chromium/1229/Source
Revision
125970
Author
[email protected]
Date
2012-08-18 15:56:23 -0700 (Sat, 18 Aug 2012)

Log Message

Revert 125941 - Merge 125799 - [chromium] Impl scrolling crashes when the renderer's initialization failed
https://bugs.webkit.org/show_bug.cgi?id=94232

Reviewed by James Robinson.

Source/WebCore:

CCLayerTreeHostImpl::calculateRenderSurfaceLayerList should not be
called when there is no renderer present or it will crash.

Chromium bug: crbug.com/125482

Tests: CCLayerTreeHostImplTest.scrollWithoutRenderer

* platform/graphics/chromium/cc/CCLayerTreeHostImpl.cpp:
(WebCore::CCLayerTreeHostImpl::calculateRenderSurfaceLayerList):
(WebCore::CCLayerTreeHostImpl::ensureRenderSurfaceLayerList):

Source/WebKit/chromium:

Also updated the finishAllRenderingAfterContextLost to properly fail
renderer initialization.

* tests/CCLayerTreeHostImplTest.cpp:


[email protected]
Review URL: https://chromiumcodereview.appspot.com/10829399

[email protected]
Review URL: https://chromiumcodereview.appspot.com/10857077

Modified Paths

Diff

Modified: branches/chromium/1229/Source/WebCore/platform/graphics/chromium/cc/CCLayerTreeHostImpl.cpp (125969 => 125970)


--- branches/chromium/1229/Source/WebCore/platform/graphics/chromium/cc/CCLayerTreeHostImpl.cpp	2012-08-18 21:47:06 UTC (rev 125969)
+++ branches/chromium/1229/Source/WebCore/platform/graphics/chromium/cc/CCLayerTreeHostImpl.cpp	2012-08-18 22:56:23 UTC (rev 125970)
@@ -251,7 +251,6 @@
 {
     ASSERT(renderSurfaceLayerList.isEmpty());
     ASSERT(m_rootLayerImpl);
-    ASSERT(m_layerRenderer); // For maxTextureSize.
 
     {
         TRACE_EVENT0("cc", "CCLayerTreeHostImpl::calcDrawEtc");
@@ -825,8 +824,6 @@
 {
     if (!m_rootLayerImpl)
         return false;
-    if (!m_layerRenderer)
-        return false;
 
     // We need both a non-empty render surface layer list and a root render
     // surface to be able to iterate over the visible layers.

Modified: branches/chromium/1229/Source/WebKit/chromium/tests/CCLayerTreeHostImplTest.cpp (125969 => 125970)


--- branches/chromium/1229/Source/WebKit/chromium/tests/CCLayerTreeHostImplTest.cpp	2012-08-18 21:47:06 UTC (rev 125969)
+++ branches/chromium/1229/Source/WebKit/chromium/tests/CCLayerTreeHostImplTest.cpp	2012-08-18 22:56:23 UTC (rev 125970)
@@ -187,11 +187,6 @@
     CCScopedSettings m_scopedSettings;
 };
 
-class FakeWebGraphicsContext3DMakeCurrentFails : public FakeWebGraphicsContext3D {
-public:
-    virtual bool makeContextCurrent() { return false; }
-};
-
 TEST_F(CCLayerTreeHostImplTest, scrollDeltaNoLayers)
 {
     ASSERT_FALSE(m_hostImpl->rootLayer());
@@ -278,21 +273,6 @@
     EXPECT_EQ(m_hostImpl->scrollBegin(IntPoint(0, 0), CCInputHandlerClient::Wheel), CCInputHandlerClient::ScrollIgnored);
 }
 
-TEST_F(CCLayerTreeHostImplTest, scrollWithoutRenderer)
-{
-    CCLayerTreeSettings settings;
-    m_hostImpl = CCLayerTreeHostImpl::create(settings, this);
-
-    // Initialization will fail here.
-    m_hostImpl->initializeLayerRenderer(FakeWebCompositorOutputSurface::create(adoptPtr(new FakeWebGraphicsContext3DMakeCurrentFails)), UnthrottledUploader);
-    m_hostImpl->setViewportSize(IntSize(10, 10), IntSize(10, 10));
-
-    setupScrollAndContentsLayers(IntSize(100, 100));
-
-    // We should not crash when trying to scroll after the renderer initialization fails.
-    EXPECT_EQ(m_hostImpl->scrollBegin(IntPoint(0, 0), CCInputHandlerClient::Wheel), CCInputHandlerClient::ScrollIgnored);
-}
-
 TEST_F(CCLayerTreeHostImplTest, replaceTreeWhileScrolling)
 {
     const int scrollLayerId = 1;
@@ -2131,11 +2111,13 @@
     EXPECT_TRUE(layer2->didLoseContextCalled());
 }
 
+class FakeWebGraphicsContext3DMakeCurrentFails : public FakeWebGraphicsContext3D {
+public:
+    virtual bool makeContextCurrent() { return false; }
+};
+
 TEST_F(CCLayerTreeHostImplTest, finishAllRenderingAfterContextLost)
 {
-    CCLayerTreeSettings settings;
-    m_hostImpl = CCLayerTreeHostImpl::create(settings, this);
-
     // The context initialization will fail, but we should still be able to call finishAllRendering() without any ill effects.
     m_hostImpl->initializeLayerRenderer(CCGraphicsContext::create3D(adoptPtr(new FakeWebGraphicsContext3DMakeCurrentFails)), UnthrottledUploader);
     m_hostImpl->finishAllRendering();
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