Branch: refs/heads/safari-7615.2.9.10-branch
  Home:   https://github.com/WebKit/WebKit
  Commit: e2edd5feef735b9746b06acc7376c667704bde24
      
https://github.com/WebKit/WebKit/commit/e2edd5feef735b9746b06acc7376c667704bde24
  Author: Dan Robson <[email protected]>
  Date:   2023-04-20 (Thu, 20 Apr 2023)

  Changed paths:
    M Configurations/Version.xcconfig

  Log Message:
  -----------
  Versioning.

WebKit-7615.2.9.10.1

Identifier: [email protected]


  Commit: 855ddac11e97ef528a4778ebb475f947fed22957
      
https://github.com/WebKit/WebKit/commit/855ddac11e97ef528a4778ebb475f947fed22957
  Author: Brent Fulgham <[email protected]>
  Date:   2023-04-20 (Thu, 20 Apr 2023)

  Changed paths:
    A LayoutTests/dom/html/navigator-plugins-expected.txt
    A LayoutTests/dom/html/navigator-plugins.html
    M Source/WebCore/page/Navigator.cpp

  Log Message:
  -----------
  Cherry-pick 1cc30ed20c25. rdar://problem/107756651

    Correct PDF Plugin descriptions returned by navigator.plugins[x].description
    https://bugs.webkit.org/show_bug.cgi?id=255155
    <rdar://problem/107756651>

    Reviewed by Geoffrey Garen.

    In Bug 254189 we corrected a bug where the name of the WebKit Built-in PDF 
plugin was localized
    for the user's settings, which confused some anti-fraud software because 
the specification requires
    the name to be in plain English text.

    While that issue was fixed, the specification also requires a consistent 
English label, "Portable
    Document Format" be returned by the 'description' property of the plugin. 
This is currently localized
    in Safari, leading to some anti-fraud software failing.

    This patch modifies only the return value from 
Navigator.plugins[].description, so that other
    elements of the Browser UI can correctly localize the description.

    * Source/WebCore/page/Navigator.cpp:
    (WebCore::Navigator::initializePluginAndMimeTypeArrays):

    Canonical link: https://commits.webkit.org/262779@main

Identifier: [email protected]


  Commit: a0f1bd6fb9c48974796a41d94da7987a40565719
      
https://github.com/WebKit/WebKit/commit/a0f1bd6fb9c48974796a41d94da7987a40565719
  Author: Simon Fraser <[email protected]>
  Date:   2023-04-20 (Thu, 20 Apr 2023)

  Changed paths:
    A LayoutTests/svg/masking/masking-with-event-region-expected.html
    A LayoutTests/svg/masking/masking-with-event-region.html
    M Source/WebCore/rendering/svg/RenderSVGResourceClipper.cpp
    M Source/WebCore/rendering/svg/RenderSVGResourceClipper.h

  Log Message:
  -----------
  Cherry-pick e4d2a7474950. rdar://problem/107885344

    SVG clip-path is sometimes broken on stevejobsarchive.com
    https://bugs.webkit.org/show_bug.cgi?id=255577
    rdar://107885344

    Reviewed by Said Abou-Hallawa.

    http://book.stevejobsarchive.com/ uses CSS clip-path with a reference to an 
SVG <clipPath> element
    which contains text.

    In this configuration, RenderSVGResourceClipper::applyClippingToContext() 
falls back to a code path
    that uses an ImageBuffer as a mask, and it caches the ImageBuffer between 
calls. This caused a
    problem when DOM Rendering in the GPU Process was enabled; this code is 
first hit for a "fake" paint
    with a NullGraphicsContext which is updating EventRegions, called out of
    `RenderLayerBacking::updateEventRegion()`. The NullGraphicsContext will 
make a local ImageBuffer.

    If we then hit this same code for actual painting with a painting 
GraphicsContext, we'll use that
    cached ImageBuffer, rather than creating a new one with appropriate GPU 
Process backing.

    Fix this by adding `isPaintingDisabled` to the criteria used to decide if 
the cached buffer can be
    re-used.

    * LayoutTests/svg/masking/masking-with-event-region-expected.html: Added.
    * LayoutTests/svg/masking/masking-with-event-region.html: Added.
    * Source/WebCore/rendering/svg/RenderSVGResourceClipper.cpp:
    (WebCore::RenderSVGResourceClipper::computeInputs):
    (WebCore::RenderSVGResourceClipper::applyClippingToContext):
    * Source/WebCore/rendering/svg/RenderSVGResourceClipper.h:
    (WebCore::ClipperData::Inputs::operator== const):

    Canonical link: https://commits.webkit.org/263087@main

Identifier: [email protected]


  Commit: fc54789c41deba74cfa75655774969b51b5083b0
      
https://github.com/WebKit/WebKit/commit/fc54789c41deba74cfa75655774969b51b5083b0
  Author: Chris Dumez <[email protected]>
  Date:   2023-04-20 (Thu, 20 Apr 2023)

  Changed paths:
    A LayoutTests/fast/events/message-event-data-isolated-world-expected.txt
    A LayoutTests/fast/events/message-event-data-isolated-world.html
    M Source/WebCore/dom/MessageEvent.cpp

  Log Message:
  -----------
  Cherry-pick ca6ca7d1895d. rdar://problem/107538083

    REGRESSION (Safari 16.4): PostMessage with transfer object is broken 
between contexts
    https://bugs.webkit.org/show_bug.cgi?id=254777
    rdar://107538083

    Reviewed by Geoffrey Garen.

    Before 256896@main, we would construct MessageEvents and give them a
    SerializedScriptValue to store internally. Then, the deserialization of this
    SerializedScriptValue would happen lazily when the JS accesses
    MessageEvent.data. We would then cache the result of the deserialization
    inside MessageEvent::m_cachedData to avoid repeated deserializations.
    Also note that we would make sure that the cachedData's world matches the
    current world before using it. We would deserialize again if the worlds
    don't match.

    After 256896@main, we now deserialize the SerializedScriptValue eagerly, so
    that we know whether to fire a `message` event or a `messageerror` one.
    This deserialization would happen in the main JS world and we would pass
    the resulting JSValue to the MessageEvent to store instead of the
    SerializedScriptValue. This would work fine for main worlds and regressed
    isolated worlds since JSMessageEvent::data() would not have a
    SerializedScriptValue to re-deserialize for isolated worlds.

    To address the issue, we now construct MessageEvents with a
    SerializedScriptValue, like we did before 256896@main. For performance 
reasons
    we also store the deserialized JSValue in MessageEvent::cachedData so that
    later calls to JSMessageEvent::data() don't end up deserializing the
    SerializedScriptValue again if called from the main world. However, if the
    call for JSMessageEvent::data() comes from an isolated world, the
    implementation will properly deserialize the SerializedScriptValue again,
    like it did before 256896@main.

    This was tested manually on strava.com.

    Test: fast/events/message-event-data-isolated-world.html

    * Source/WebCore/dom/MessageEvent.cpp:
    (WebCore::MessageEvent::create):

    Canonical link: https://commits.webkit.org/263155@main

Identifier: [email protected]


  Commit: 4e700d7ec6105fae4486f2d7d648116d7d9fc334
      
https://github.com/WebKit/WebKit/commit/4e700d7ec6105fae4486f2d7d648116d7d9fc334
  Author: Wenson Hsieh <[email protected]>
  Date:   2023-04-20 (Thu, 20 Apr 2023)

  Changed paths:
    A 
LayoutTests/css3/scroll-snap/scroll-snap-discrete-wheel-event-in-mainframe-expected.txt
    A 
LayoutTests/css3/scroll-snap/scroll-snap-discrete-wheel-event-in-mainframe.html
    M LayoutTests/css3/scroll-snap/scroll-snap-wheel-event.html
    M LayoutTests/platform/glib/TestExpectations
    M LayoutTests/platform/ios-wk2/TestExpectations
    M LayoutTests/platform/mac-wk1/TestExpectations
    M Source/WebCore/platform/ScrollingEffectsController.h
    M Source/WebCore/platform/mac/ScrollingEffectsController.mm

  Log Message:
  -----------
  Cherry-pick f001b0bc6b6a. rdar://problem/107885426

    Cherry-pick 939e8d49f5a5. rdar://problem/107885426

        [macOS] Scrolling with a physical mouse wheel should not always animate 
to the closest snap point
        https://bugs.webkit.org/show_bug.cgi?id=255493
        rdar://107885426

        Reviewed by Simon Fraser.

        When scrolling using a physical mouse wheel in a scroll snap container, 
WebKit's current scroll snap
        implementation handles each wheel event in a stateless manner, kicking 
off a scroll snap animation
        to the closest snap point if no other wheel event is observed after 750 
ms. This can lead to some
        unintuitive behaviors when distances between scroll snap points are 
large, since the user may scroll
        for a single wheel tick expecting to advance to the next page, only for 
the scroll position to
        animate back to where they started.

        This patch improves this by treating a stream of discrete wheel events 
similarly to trackpad-based
        momentum scrolling, and animates to the appropriate snap point in the 
direction of scrolling; this
        also aligns our implementation more closely with both Gecko and Blink.

        See below for more details.

        Test: 
css3/scroll-snap/scroll-snap-discrete-wheel-event-in-mainframe.html

        * 
LayoutTests/css3/scroll-snap/scroll-snap-discrete-wheel-event-in-mainframe-expected.txt:
 Added.
        * 
LayoutTests/css3/scroll-snap/scroll-snap-discrete-wheel-event-in-mainframe.html:
 Added.

        Add a new layout test to exercise the change, in a mainframe (root) 
scroll snapping context.

        * LayoutTests/css3/scroll-snap/scroll-snap-wheel-event.html:

        Adjust an existing stateless scroll snapping test to exercise the 
change by lowering the scrolling
        tick count from 3 to 1. Without this change, this adjustment would've 
bumped us back to the original
        scroll position; after this change, we'll now animate to the next snap 
point.

        * LayoutTests/platform/glib/TestExpectations:
        * LayoutTests/platform/ios-wk2/TestExpectations:
        * LayoutTests/platform/mac-wk1/TestExpectations:

        Discrete wheel events on the root don't seem to trigger scroll snapping 
at all in WebKit1, both
        before and after this patch. I filed webkit.org/b/255498, to track that 
issue separately.

        * Source/WebCore/platform/ScrollingEffectsController.h:

        Maintain a LIFO queue of up to three discrete wheel event deltas, which 
we use to determine the
        user's intended scrolling direction after finishing a stream of 
discrete wheel events.

        * Source/WebCore/platform/mac/ScrollingEffectsController.mm:
        (WebCore::ScrollingEffectsController::stopAllTimers):
        (WebCore::toWheelEventStatus):
        (WebCore::operator<<):
        (WebCore::ScrollingEffectsController::scheduleDiscreteScrollSnap):
        (WebCore::ScrollingEffectsController::discreteSnapTransitionTimerFired):

        Rename "stateless" -> "discrete", to reflect the fact that the new 
implementation is now stateful
        by way of maintaining a queue of recent discrete wheel event deltas. 
Additionally, use
        `transitionToGlideAnimationState()` to kick off scroll snapping if the 
average wheel event delta is
        nonzero.

        (WebCore::ScrollingEffectsController::processWheelEventForScrollSnap):
        (WebCore::ScrollingEffectsController::scheduleStatelessScrollSnap): 
Deleted.

        Dramatically reduce the delay before firing the scroll snap timer for 
discrete wheel events, now
        that the purpose is no longer to wait for the user to manually scroll 
to the next page before
        snapping, but rather observe enough events to estimate the user's 
intended scrolling direction.

        
(WebCore::ScrollingEffectsController::statelessSnapTransitionTimerFired): 
Deleted.

        Canonical link: https://commits.webkit.org/263071@main

    Identifier: 259548.665@safari-7615-branch

Identifier: [email protected]


  Commit: 302eb8deec34f9574877cc84dd3c7d8cf544b0c3
      
https://github.com/WebKit/WebKit/commit/302eb8deec34f9574877cc84dd3c7d8cf544b0c3
  Author: Simon Fraser <[email protected]>
  Date:   2023-04-20 (Thu, 20 Apr 2023)

  Changed paths:
    A LayoutTests/css3/scroll-snap/resnap-after-layout-expected.txt
    A LayoutTests/css3/scroll-snap/resnap-after-layout.html
    M LayoutTests/platform/gtk/TestExpectations
    M LayoutTests/platform/ios-wk2/TestExpectations
    M LayoutTests/platform/wpe/TestExpectations
    M Source/WebCore/platform/ScrollSnapAnimatorState.cpp
    M Source/WebCore/platform/ScrollSnapAnimatorState.h
    M Source/WebCore/platform/ScrollableArea.cpp

  Log Message:
  -----------
  Cherry-pick 502cd653a7f7. rdar://problem/107885376

    Cherry-pick ee03689988d7. rdar://problem/107885376

        Scroll snap sometimes jumps back to the wrong place on 
stevejobsarchive.com
        https://bugs.webkit.org/show_bug.cgi?id=255492
        rdar://107885376

        Reviewed by Wenson Hsieh.

        259696@main added some logic that attempts to re-snap after layout when 
multiple boxes were snapped,
        adding a `m_currentlySnappedBoxes` member to `ScrollSnapAnimatorState`.

        However, `m_currentlySnappedBoxes` was only updated in the 
`resnapAfterLayout` code path, not when
        scrolling moved you to a new snap point. That resulted in 
`resnapAfterLayout` sometimes returning
        you to a stale location if you'd scrolled to a new snap point since the 
last time
        `resnapAfterLayout` was run, especially when hitting the "multiple 
boxes were snapped" clause.

        It's troublesome to have both `m_currentlySnappedBoxes` and a 
`snapTargetID` in each SnapOffset (a
        future patch will clean this up). But for now, ensure that 
`m_currentlySnappedBoxes` is updated on
        each scroll-related snap as well as resnapping after layout.

        * LayoutTests/css3/scroll-snap/resnap-after-layout-expected.txt: Added.
        * LayoutTests/css3/scroll-snap/resnap-after-layout.html: Added.
        * LayoutTests/platform/gtk/TestExpectations:
        * LayoutTests/platform/ios-wk2/TestExpectations:
        * LayoutTests/platform/wpe/TestExpectations:
        * Source/WebCore/platform/ScrollSnapAnimatorState.cpp:
        (WebCore::ScrollSnapAnimatorState::setActiveSnapIndexForAxis):
        (WebCore::ScrollSnapAnimatorState::updateCurrentlySnappedBoxes):
        (WebCore::chooseBoxToResnapTo):
        (WebCore::ScrollSnapAnimatorState::resnapAfterLayout):
        
(WebCore::ScrollSnapAnimatorState::setNearestScrollSnapIndexForAxisAndOffsetInternal):
        (WebCore::ScrollSnapAnimatorState::setNearestScrollSnapIndexForOffset):
        (WebCore::ScrollSnapAnimatorState::chooseBoxToResnapTo const): Deleted.
        
(WebCore::ScrollSnapAnimatorState::setNearestScrollSnapIndexForAxisAndOffset): 
Deleted.
        * Source/WebCore/platform/ScrollSnapAnimatorState.h: Some functions can 
be private.
        (WebCore::ScrollSnapAnimatorState::setActiveSnapIndexForAxisInternal): 
The "internal" implies that it doesn't update m_currentlySnappedBoxes.
        (WebCore::ScrollSnapAnimatorState::setActiveSnapIndexForAxis): Deleted.
        * Source/WebCore/platform/ScrollableArea.cpp:
        (WebCore::ScrollableArea::resnapAfterLayout): Improved logging.
        (WebCore::ScrollableArea::doPostThumbMoveSnapping): Improved logging.

        Canonical link: https://commits.webkit.org/263097@main

    Identifier: 259548.666@safari-7615-branch

Identifier: [email protected]


  Commit: fd926e8b1a81b49adf6b554b5523b0b635a9c6f6
      
https://github.com/WebKit/WebKit/commit/fd926e8b1a81b49adf6b554b5523b0b635a9c6f6
  Author: Wenson Hsieh <[email protected]>
  Date:   2023-04-20 (Thu, 20 Apr 2023)

  Changed paths:
    A 
LayoutTests/css3/scroll-snap/scroll-snap-discrete-wheel-events-with-layout-expected.txt
    A 
LayoutTests/css3/scroll-snap/scroll-snap-discrete-wheel-events-with-layout.html
    M LayoutTests/platform/glib/TestExpectations
    M LayoutTests/platform/ios-wk2/TestExpectations
    M Source/WebCore/page/scrolling/ScrollingTree.cpp
    M Source/WebCore/page/scrolling/ScrollingTree.h
    M Source/WebCore/platform/mac/ScrollingEffectsController.mm
    M Source/WebKit/UIProcess/RemoteLayerTree/RemoteScrollingCoordinatorProxy.h
    M Source/WebKit/UIProcess/RemoteLayerTree/RemoteScrollingTree.cpp
    M Source/WebKit/UIProcess/RemoteLayerTree/RemoteScrollingTree.h
    M 
Source/WebKit/UIProcess/RemoteLayerTree/mac/RemoteScrollingCoordinatorProxyMac.h
    M 
Source/WebKit/UIProcess/RemoteLayerTree/mac/RemoteScrollingCoordinatorProxyMac.mm

  Log Message:
  -----------
  Cherry-pick 361116a68ae6. rdar://problem/108231619

    Cherry-pick 025262762049. rdar://problem/108231619

        [macOS] Performing layout when scroll snapping with a physical mouse 
wheel snaps to the last snap position
        https://bugs.webkit.org/show_bug.cgi?id=255603

        Reviewed by Tim Horton.

        Currently, when `resnapAfterLayout()` is called after a layout pass 
while scrolling with a physical
        mouse wheel in a scroll snapping container, we end up erroneously 
re-snapping to the last active
        snap position. This doesn't happen when using a trackpad to scroll 
because we bail here:

        ```
        void ScrollableArea::resnapAfterLayout()
        {
        …
            if (!scrollAnimator || isScrollSnapInProgress() || 
isUserScrollInProgress())
                return;
        ```

        …due to the fact that `isUserScrollInProgress()` is `true`, since this 
flag is set over the course
        of both user-driven and momentum scrolling phases. Importantly, note 
that `isScrollSnapInProgress()`
        is only `true` in this case where UI-side compositing is *disabled* — 
this is because nothing
        currently calls `{add|remove}NodeWithActiveScrollSnap` on 
`RemoteScrollingUIState`, which means that
        we never end up propagating `m_nodesWithActiveScrollSnap` to the web 
process when UI-side
        compositing is enabled, so from the web-process' perspective, 
`isScrollSnapInProgress()` is always
        `false`.

        As such, in order to make physical mouse wheel scrolling work well when 
there are interleaved layout
        passes, the fix is two-fold:

        1.  Consider `isScrollSnapInProgress()` to be true if the discrete 
wheel event timer is scheduled.
        2.  Add plumbing to deliver `isScrollSnapInProgress()` state from the 
UI process to the web process
            through the scrolling state tree, to ensure that this bug fix is 
also effective when UI-side
            compositing is enabled.

        Test: 
css3/scroll-snap/scroll-snap-discrete-wheel-events-with-layout.html

        * 
LayoutTests/css3/scroll-snap/scroll-snap-discrete-wheel-events-with-layout-expected.txt:
 Added.
        * 
LayoutTests/css3/scroll-snap/scroll-snap-discrete-wheel-events-with-layout.html:
 Added.

        Add a new test case to exercise the bug fix.

        * LayoutTests/platform/glib/TestExpectations:
        * LayoutTests/platform/ios-wk2/TestExpectations:
        * Source/WebCore/page/scrolling/ScrollingTree.cpp:
        (WebCore::ScrollingTree::setNodeScrollSnapInProgress):
        * Source/WebCore/page/scrolling/ScrollingTree.h:
        (WebCore::ScrollingTree::scrollingTreeNodeDidBeginScrollSnapping):
        (WebCore::ScrollingTree::scrollingTreeNodeDidEndScrollSnapping):

        Add new override hooks to allow the client layer to know when scrolling 
tree nodes change "scroll
        snap in progress" state. See WebKit2 changes below for more information.

        * Source/WebCore/platform/mac/ScrollingEffectsController.mm:
        (WebCore::ScrollingEffectsController::stopAllTimers):
        (WebCore::ScrollingEffectsController::isScrollSnapInProgress const):

        Consider scroll snap in progress if we've scheduled a scroll snap while 
handling discrete wheel
        events.

        (WebCore::ScrollingEffectsController::discreteSnapTransitionTimerFired):

        Add a couple of call sites to `m_client.didStopScrollSnapAnimation()` 
in the case where the timer
        is either stopped early or without triggering a scroll snap animation, 
such that we don't end up
        with a node being stuck indefinitely in `nodesWithActiveScrollSnap`.

        * 
Source/WebKit/UIProcess/RemoteLayerTree/RemoteScrollingCoordinatorProxy.h:
        
(WebKit::RemoteScrollingCoordinatorProxy::scrollingTreeNodeDidBeginScrollSnapping):
        
(WebKit::RemoteScrollingCoordinatorProxy::scrollingTreeNodeDidEndScrollSnapping):
        * Source/WebKit/UIProcess/RemoteLayerTree/RemoteScrollingTree.cpp:
        (WebKit::RemoteScrollingTree::scrollingTreeNodeDidBeginScrollSnapping):
        (WebKit::RemoteScrollingTree::scrollingTreeNodeDidEndScrollSnapping):

        Add plumbing from `RemoteScrollingTree` -> 
`RemoteScrollingCoordinatorProxy` ->
        `RemoteScrollingUIState` whenever a scrolling node begins or ends 
scroll snapping progress.

        * Source/WebKit/UIProcess/RemoteLayerTree/RemoteScrollingTree.h:
        * 
Source/WebKit/UIProcess/RemoteLayerTree/mac/RemoteScrollingCoordinatorProxyMac.h:
        * 
Source/WebKit/UIProcess/RemoteLayerTree/mac/RemoteScrollingCoordinatorProxyMac.mm:
        
(WebKit::RemoteScrollingCoordinatorProxyMac::scrollingTreeNodeDidBeginScrollSnapping):
        
(WebKit::RemoteScrollingCoordinatorProxyMac::scrollingTreeNodeDidEndScrollSnapping):

        Canonical link: https://commits.webkit.org/263108@main

    Identifier: 259548.667@safari-7615-branch

Identifier: [email protected]


  Commit: 4a74cdae1f42fdcac74b5674b6440b64beb64b16
      
https://github.com/WebKit/WebKit/commit/4a74cdae1f42fdcac74b5674b6440b64beb64b16
  Author: Wenson Hsieh <[email protected]>
  Date:   2023-04-20 (Thu, 20 Apr 2023)

  Changed paths:
    M LayoutTests/TestExpectations
    A 
LayoutTests/css3/scroll-snap/ios/scroll-snap-mainframe-scroll-deceleration-with-obscured-inset-expected.txt
    A 
LayoutTests/css3/scroll-snap/ios/scroll-snap-mainframe-scroll-deceleration-with-obscured-inset.html
    M LayoutTests/platform/ios-wk2/TestExpectations
    M 
Source/WebKit/UIProcess/RemoteLayerTree/ios/RemoteScrollingCoordinatorProxyIOS.mm
    M Tools/WebKitTestRunner/TestOptions.cpp
    M Tools/WebKitTestRunner/TestOptions.h
    M Tools/WebKitTestRunner/ios/TestControllerIOS.mm

  Log Message:
  -----------
  Cherry-pick 005d93b39e87. rdar://problem/108008480

    Cherry-pick dc3e66efee5b. rdar://problem/108008480

        [iOS] Scrolling snaps to previous snap point when tapping during a 
scroll snap in mainframe
        https://bugs.webkit.org/show_bug.cgi?id=255670
        rdar://108008480

        Reviewed by Tim Horton.

        When interrupting scroll view deceleration with a tap gesture, we 
re-run logic to retarget the snap
        offset given the current scroll offset and the projected (original) 
scroll offset where we would've
        ended up scrolling. In an overflow region where this bug does *not* 
reproduce, the current offset is
        equal to the projected offset, so we simply retarget to the closest 
snap point.

        However, in a mainframe scroll snapping context where the bug 
reproduces, the projected snap offset
        is off by an amount equal to the top obscured inset, which means that 
instead of defaulting to the
        closest snap position, we'll instead always retarget the previous snap 
point. To fix this, we simply
        apply this same adjustment to this projected offset.

        Test: 
css3/scroll-snap/ios/scroll-snap-mainframe-scroll-deceleration-with-obscured-inset.html

        * LayoutTests/TestExpectations:
        * 
LayoutTests/css3/scroll-snap/ios/scroll-snap-mainframe-scroll-deceleration-with-obscured-inset-expected.txt:
 Added.
        * 
LayoutTests/css3/scroll-snap/ios/scroll-snap-mainframe-scroll-deceleration-with-obscured-inset.html:
 Added.

        Add a layout test to exercise this change, by scrolling via a swipe 
gesture, tapping, and verifying
        that we don't snap back to the start.

        * LayoutTests/platform/ios-wk2/TestExpectations:
        * 
Source/WebKit/UIProcess/RemoteLayerTree/ios/RemoteScrollingCoordinatorProxyIOS.mm:
        
(WebKit::RemoteScrollingCoordinatorProxyIOS::adjustTargetContentOffsetForSnapping):

        Offset the projected offset by the top obscured inset, for consistency 
with the current offset.

        * Tools/WebKitTestRunner/TestOptions.cpp:
        (WTR::TestOptions::defaults):
        (WTR::TestOptions::keyTypeMapping):
        * Tools/WebKitTestRunner/TestOptions.h:
        (WTR::TestOptions::obscuredInsetTop const):
        * Tools/WebKitTestRunner/ios/TestControllerIOS.mm:
        (WTR::TestController::platformResetStateToConsistentValues):

        Add a new test option to specify a top obscured inset value on the web 
view.

        Canonical link: https://commits.webkit.org/263158@main

    Identifier: 259548.669@safari-7615-branch

Identifier: [email protected]


  Commit: cbb31e0324a839ea51f4f4fa355cc46b16af9f2f
      
https://github.com/WebKit/WebKit/commit/cbb31e0324a839ea51f4f4fa355cc46b16af9f2f
  Author: Jer Noble <[email protected]>
  Date:   2023-04-20 (Thu, 20 Apr 2023)

  Changed paths:
    M LayoutTests/media/media-source/media-webm-opus-partial-abort-expected.txt
    M LayoutTests/media/media-source/media-webm-opus-partial-abort.html
    M LayoutTests/media/media-source/media-webm-opus-partial-expected.txt
    M LayoutTests/media/media-source/media-webm-opus-partial.html
    M LayoutTests/media/video-test.js
    M Source/WebCore/platform/MediaSample.h
    M Source/WebCore/platform/graphics/cocoa/CMUtilities.mm
    M Source/WebCore/platform/graphics/cocoa/SourceBufferParserWebM.cpp
    M Source/WebCore/platform/graphics/cocoa/SourceBufferParserWebM.h

  Log Message:
  -----------
  Cherry-pick a1c1e04148d7. rdar://problem/106976225

    Cherry-pick 262837@main (7f1bcb55362b). rdar://106976225

        [Cocoa] "Pop" of bad audio heard at the start of certain YouTube videos
        https://bugs.webkit.org/show_bug.cgi?id=255212
        rdar://106976225

        Reviewed by Eric Carlson.

        Tracking addition of a test via 
https://bugs.webkit.org/show_bug.cgi?id=255227.

        Two interrelated problems cause discontinuties in the audio output at 
the
        start of certain Opus-encoded WebM files.

        1) A bug in the ffmpeg muxer causes the initial block in a cluster to 
be 1ms
        too long, which causes an audible discontinuity to be generated from
        AVSampleBufferAudioRenderer.

        2) Some Opus-encoded WebM files include a CodecDelay value, which 
requires
        players to decode, but not render, the initial audio frames in a stream.

        For 2), map the CodecDelay value to a 
kCMSampleBufferAttachmentKey_TrimDurationAtStart
        attachment in the resulting CMSampleBuffer. This causes the output 
duration of the
        sample to be reduced by the trim duration, and the output presentation 
time to be
        increased by the trim duration, so also shift the input presentation 
time by the same
        amount. This aligns the first audible frame with the start time of the 
track.

        For 1), if a discontinuity is encountered, and the discontinuity is 
less than 15ms
        simply advance the presentation time of the subsequent sample by the 
discontinuity
        duration. Track this discontinuity cumulatively, so that if multiple 
discontinuities
        are encountered that total greater than 15ms, a real audible 
discontinuity is generated
         and the track is brought back in sync with the master timeline.

        * Source/WebCore/platform/MediaSample.h:
        * Source/WebCore/platform/graphics/cocoa/CMUtilities.mm:
            (WebCore::toCMSampleBuffer):
        * Source/WebCore/platform/graphics/cocoa/SourceBufferParserWebM.cpp:
            (WebCore::WebMParser::VideoTrackData::consumeFrameData):
            (WebCore::WebMParser::AudioTrackData::AudioTrackData):
            (WebCore::WebMParser::AudioTrackData::consumeFrameData):
        * Source/WebCore/platform/graphics/cocoa/SourceBufferParserWebM.h:
            (WebCore::WebMParser::AudioTrackData::AudioTrackData): Deleted.

        Canonical link: https://commits.webkit.org/262837@main
    Canonical link: https://commits.webkit.org/259548.670@safari-7615-branch

Identifier: [email protected]


  Commit: e66b99f0ed5b43e382617ff222596e3ae4b2348e
      
https://github.com/WebKit/WebKit/commit/e66b99f0ed5b43e382617ff222596e3ae4b2348e
  Author: Russell Epstein <[email protected]>
  Date:   2023-04-21 (Fri, 21 Apr 2023)

  Changed paths:
    M Source/WebKit/UIProcess/RemoteLayerTree/RemoteScrollingTree.cpp

  Log Message:
  -----------
  Cherry-pick be22708f4dbd. rdar://problem/107885426

    Unreviewed build fix. rdar://107885426

    Source/WebKit/UIProcess/RemoteLayerTree/RemoteScrollingTree.cpp:76:9: 
error: value of type 'WebKit::RemoteScrollingCoordinatorProxy' is not 
contextually convertible to 'bool'

    Canonical link: https://commits.webkit.org/259548.677@safari-7615-branch
Canonical link: https://commits.webkit.org/[email protected]


  Commit: 0434636ed95f505aeeae1ec16d205ca54eaa6375
      
https://github.com/WebKit/WebKit/commit/0434636ed95f505aeeae1ec16d205ca54eaa6375
  Author: Chris Dumez <[email protected]>
  Date:   2023-04-21 (Fri, 21 Apr 2023)

  Changed paths:
    M Source/WebKit/UIProcess/ios/WKWebGeolocationPolicyDeciderIOS.mm

  Log Message:
  -----------
  Cherry-pick 14f467660549. rdar://problem/107352115

    Regression(259658@main) Geolocation permission prompt is no longer showing 
in modal view
    https://bugs.webkit.org/show_bug.cgi?id=255133
    rdar://107352115

    Reviewed by Wenson Hsieh and Tim Horton.

    Use the same view controller to present the prompt as the UIWebView code 
used to.
    I have verified locally that this fixes the issue.

    * Source/WebKit/UIProcess/ios/WKWebGeolocationPolicyDeciderIOS.mm:
    (-[WKWebGeolocationPolicyDecider _executeNextChallenge]):

    Canonical link: https://commits.webkit.org/262697@main

Identifier: [email protected]


  Commit: b0daf7f0db3e799d10b7ab619e42efc53f850c36
      
https://github.com/WebKit/WebKit/commit/b0daf7f0db3e799d10b7ab619e42efc53f850c36
  Author: Chris Dumez <[email protected]>
  Date:   2023-04-21 (Fri, 21 Apr 2023)

  Changed paths:
    M Source/WebKit/Shared/Cocoa/SandboxExtensionCocoa.mm
    M Source/WebKit/UIProcess/WebProcessPool.cpp
    M Tools/TestWebKitAPI/Tests/WebKitCocoa/ProcessSwapOnNavigation.mm

  Log Message:
  -----------
  Cherry-pick 2dbbdbf493db. rdar://problem/107723629

    REGRESSION (iOS 16.4): Chrome crashes in 
WebBackForwardCache::takeSuspendedPage
    https://bugs.webkit.org/show_bug.cgi?id=255102
    rdar://107723629

    Reviewed by Geoffrey Garen.

    We recently added an AddAllowedFirstPartyForCookies async IPC call inside
    WebProcessPool::processForNavigation(), right after we decide which process 
to
    use. Because the IPC is async, this means that the selected process may 
crash
    while we're waiting for a response. If this happens, we now call
    processForNavigation() again to select a new process instead of trying to
    proceed with the navigation with the terminated process.

    Similarly, also make sure that the destination suspendedPage is still valid
    after receiving the async IPC, in case the back/forward cache got cleared
    during the IPC (e.g. due to memory pressure).

    * Source/WebKit/UIProcess/WebProcessPool.cpp:
    (WebKit::WebProcessPool::processForNavigation):
    * Tools/TestWebKitAPI/Tests/WebKitCocoa/ProcessSwapOnNavigation.mm:

    Canonical link: https://commits.webkit.org/262709@main

Identifier: [email protected]


  Commit: 0c62a343d51cb889661ea34936c82551967a4144
      
https://github.com/WebKit/WebKit/commit/0c62a343d51cb889661ea34936c82551967a4144
  Author: Russell Epstein <[email protected]>
  Date:   2023-04-24 (Mon, 24 Apr 2023)

  Changed paths:
    M Configurations/Version.xcconfig

  Log Message:
  -----------
  Versioning.

WebKit-615.2.9.10.2

Identifier: [email protected]


  Commit: ccdecd09e78188e234f910b89cd36264be57ed76
      
https://github.com/WebKit/WebKit/commit/ccdecd09e78188e234f910b89cd36264be57ed76
  Author: Dan Glastonbury <[email protected]>
  Date:   2023-04-24 (Mon, 24 Apr 2023)

  Changed paths:
    M Source/ThirdParty/ANGLE/src/libANGLE/renderer/metal/ProgramMtl.mm

  Log Message:
  -----------
  Cherry-pick 4aa8750579fb. rdar://problem/106964250

    [ANGLE] UBO convert only whole block
    rdar://106964250

    Reviewed by Dean Jackson.

    OpenGL doesn't guarantee that the buffer backing uniform blocks needs to be 
a
    multiple of the block size. When converting OpenGL layout blocks to Metal
    layout, ConvertUniformBufferData is rounding up the size of the backing 
buffer
    to a multiple of the block size which leads to reading out of bounds.

    To ensure we don't read outside the source buffer, this change replaces 
calls to
    `memcpy` with `memcpy_guarded` which accepts a pointer to the limit of 
available
    data and copies as much data as is available, writing zeroes for any 
unavailable
    amount.

    Conversion of bools didn't use memcpy, so the raw pointer is checked against
    maxSrcPtr and only dereferenced if valid, otherwise zero is used.

    This has been tested with ASan and UBSan enabled against the OpenGL dEQP 
tests
    for Uniform Buffer Objects in ANGLE.

    * Source/ThirdParty/ANGLE/src/libANGLE/renderer/metal/ProgramMtl.mm:

    Canonical link: https://commits.webkit.org/259548.667@safari-7615-branch

Identifier: [email protected]


  Commit: b2800b173f1a0faf15fbcbd8596105b829c7b702
      
https://github.com/WebKit/WebKit/commit/b2800b173f1a0faf15fbcbd8596105b829c7b702
  Author: Dan Robson <[email protected]>
  Date:   2023-04-25 (Tue, 25 Apr 2023)

  Changed paths:
    M Configurations/Version.xcconfig

  Log Message:
  -----------
  Versioning.

WebKit-7616.1.10.3

Identifier: [email protected]


  Commit: 77899089cc29f732abe2c258e19c970c0df364e3
      
https://github.com/WebKit/WebKit/commit/77899089cc29f732abe2c258e19c970c0df364e3
  Author: Chris Dumez <[email protected]>
  Date:   2023-04-25 (Tue, 25 Apr 2023)

  Changed paths:
    A LayoutTests/fast/dom/object-load-pdf-data-url-expected.txt
    A LayoutTests/fast/dom/object-load-pdf-data-url.html
    M Source/WebCore/html/HTMLImageLoader.cpp
    M Source/WebKit/WebProcess/Plugins/PDF/PDFPlugin.mm

  Log Message:
  -----------
  Cherry-pick 2c5a97645ec0. rdar://problem/107795151

    Regression(255052@main) Some streaming sites fail with an Embedded Video 
Sandbox Browser Error
    https://bugs.webkit.org/show_bug.cgi?id=255900
    <rdar://107795151>

    Reviewed by Tim Horton and Darin Adler.

    Some streaming sites fail with an Embedded Video Sandbox Browser Error since
    255052@main. 255052@main seems correct per the specification but exposing 
the
    "Chrome PDF Viewer" caused those sites to use a different code path for
    validating iframe sandboxing.

    They now try to load a data URL with a pdf MIME type inside an <object> 
element
    and this was firing an error event on iOS, which was causing the site's 
logic
    to display the sandbox error.

    There is logic inside WebFrameLoaderClient::objectContentType() that is iOS
    specific and causes us  to try to load PDF as an image when inside an 
<object>.
    This is because we don't support loadings such PDFs as plugins on iOS.

    However, WebKit, in general, doesn't fire load/error events on <object> 
elements
    that are loaded as plugins. It only does so when loading the <object> as an 
image.
    I propose that we stop firing the load/error events for <object> loads of 
PDFs on
    iOS, to make it look like they were loaded as plugins and avoid firing 
events that
    could confuse sites such as the ones in the radar.

    * LayoutTests/fast/dom/object-load-pdf-data-url-expected.txt: Added.
    * LayoutTests/fast/dom/object-load-pdf-data-url.html: Added.
    * Source/WebCore/html/HTMLImageLoader.cpp:
    (WebCore::HTMLImageLoader::dispatchLoadEvent():

    Canonical link: https://commits.webkit.org/263377@main

Identifier: [email protected]


  Commit: 8db330e78c6665074e89979548d0ccf8a3f1cb24
      
https://github.com/WebKit/WebKit/commit/8db330e78c6665074e89979548d0ccf8a3f1cb24
  Author: Dan Robson <[email protected]>
  Date:   2023-04-25 (Tue, 25 Apr 2023)

  Changed paths:
    A 
LayoutTests/css3/scroll-snap/ios/scroll-snap-mainframe-pinch-out-expected.txt
    A LayoutTests/css3/scroll-snap/ios/scroll-snap-mainframe-pinch-out.html
    M 
LayoutTests/css3/scroll-snap/ios/scroll-snap-mainframe-scroll-deceleration-with-obscured-inset.html
    M LayoutTests/resources/ui-helper.js
    M Source/WebCore/page/ChromeClient.h
    M Source/WebCore/page/FrameView.cpp
    M Source/WebCore/page/FrameView.h
    M Source/WebCore/platform/ScrollableArea.cpp
    M Source/WebCore/platform/ScrollableArea.h
    M Source/WebKit/Platform/spi/ios/UIKitSPI.h
    M Source/WebKit/UIProcess/API/ios/WKWebViewIOS.mm
    M 
Source/WebKit/UIProcess/RemoteLayerTree/ios/RemoteScrollingCoordinatorProxyIOS.mm
    M Source/WebKit/UIProcess/ios/WKScrollView.mm
    M Source/WebKit/WebProcess/WebCoreSupport/WebChromeClient.cpp
    M Source/WebKit/WebProcess/WebCoreSupport/WebChromeClient.h
    M Source/WebKit/WebProcess/WebPage/WebPage.h

  Log Message:
  -----------
  Cherry-pick 2c37e8ef640d. rdar://problem/108008629

    Apply patch. rdar://problem/108008629

    Identifier: 259548.687@safari-7615-branch

Identifier: [email protected]


Compare: https://github.com/WebKit/WebKit/compare/e2edd5feef73%5E...8db330e78c66
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