Branch: refs/heads/rm-render-fullscreen
  Home:   https://github.com/WebKit/WebKit
  Commit: 717fb4078c37fce9db22743d5c5061a07d4a38c0
      
https://github.com/WebKit/WebKit/commit/717fb4078c37fce9db22743d5c5061a07d4a38c0
  Author: Tim Nguyen <n...@apple.com>
  Date:   2022-10-06 (Thu, 06 Oct 2022)

  Changed paths:
    M 
LayoutTests/compositing/no-compositing-when-fulll-screen-is-present-expected.txt
    M LayoutTests/fullscreen/full-screen-layer-dump-expected.txt
    R LayoutTests/fullscreen/full-screen-placeholder-expected.txt
    R LayoutTests/fullscreen/full-screen-placeholder.html
    M LayoutTests/fullscreen/fullscreen-restore-scroll-position.html
    R LayoutTests/platform/glib/fullscreen/full-screen-placeholder-expected.txt
    M Source/WebCore/Sources.txt
    M Source/WebCore/dom/Document.cpp
    M Source/WebCore/dom/FullscreenManager.cpp
    M Source/WebCore/dom/FullscreenManager.h
    M Source/WebCore/page/FrameView.cpp
    R Source/WebCore/rendering/RenderFullScreen.cpp
    R Source/WebCore/rendering/RenderFullScreen.h
    M Source/WebCore/rendering/RenderInline.cpp
    M Source/WebCore/rendering/RenderLayerCompositor.cpp
    M Source/WebCore/rendering/RenderVideo.cpp
    M Source/WebCore/rendering/RenderVideo.h
    M Source/WebCore/rendering/updating/RenderTreeBuilder.cpp
    M Source/WebCore/rendering/updating/RenderTreeBuilder.h
    M Source/WebCore/rendering/updating/RenderTreeBuilderBlock.cpp
    R Source/WebCore/rendering/updating/RenderTreeBuilderFullScreen.cpp
    R Source/WebCore/rendering/updating/RenderTreeBuilderFullScreen.h
    M Source/WebCore/rendering/updating/RenderTreeBuilderInline.cpp
    M Source/WebCore/rendering/updating/RenderTreeUpdater.cpp

  Log Message:
  -----------
  Remove RenderFullScreen and RenderTreeBuilderFullScreen
https://bugs.webkit.org/show_bug.cgi?id=246065
rdar://100793009

Reviewed by NOBODY (OOPS!).

RenderFullscreen was added to prevent visible layout shifts while a certain 
element is being fullscreened. This is now unnecessary with the current CSS for 
fullscreen elements,
since fullscreen will expand and fixed position the element immeditately. It 
has no performance benefit given making an element fullscreen already schedules 
a full style rebuild and changes
layout for the whole ancestor chain for the current fullscreen element.

Remove it since it is not trivial to maintain, makes porting to top layer and 
future projects like LFC harder.

* 
LayoutTests/compositing/no-compositing-when-fulll-screen-is-present-expected.txt:
* LayoutTests/fullscreen/full-screen-layer-dump-expected.txt:
* LayoutTests/fullscreen/full-screen-placeholder-expected.txt: Removed.
* LayoutTests/fullscreen/full-screen-placeholder.html: Removed.
* LayoutTests/fullscreen/fullscreen-restore-scroll-position.html:
* LayoutTests/platform/glib/fullscreen/full-screen-placeholder-expected.txt: 
Removed.
* Source/WebCore/Sources.txt:
* Source/WebCore/dom/Document.cpp:
* Source/WebCore/dom/FullscreenManager.cpp:
(WebCore::FullscreenManager::willEnterFullscreen):
(WebCore::FullscreenManager::didExitFullscreen):
(WebCore::FullscreenManager::setFullscreenRenderer): Deleted.
(WebCore::FullscreenManager::fullscreenRenderer const): Deleted.
(WebCore::unwrapFullscreenRenderer): Deleted.
* Source/WebCore/dom/FullscreenManager.h:
* Source/WebCore/page/FrameView.cpp:
* Source/WebCore/rendering/RenderFullScreen.cpp: Removed.
* Source/WebCore/rendering/RenderFullScreen.h: Removed.
* Source/WebCore/rendering/RenderLayerCompositor.cpp:
(WebCore::isDescendantOfFullScreenLayer):
* Source/WebCore/rendering/RenderVideo.cpp:
(WebCore::placeholder): Deleted.
(WebCore::RenderVideo::offsetLeft const): Deleted.
(WebCore::RenderVideo::offsetTop const): Deleted.
(WebCore::RenderVideo::offsetWidth const): Deleted.
(WebCore::RenderVideo::offsetHeight const): Deleted.
* Source/WebCore/rendering/RenderVideo.h:
* Source/WebCore/rendering/updating/RenderTreeBuilder.cpp:
(WebCore::RenderTreeBuilder::RenderTreeBuilder):
(WebCore::RenderTreeBuilder::destroy):
(WebCore::RenderTreeBuilder::createPlaceholderForFullScreen): Deleted.
* Source/WebCore/rendering/updating/RenderTreeBuilder.h:
(WebCore::RenderTreeBuilder::continuationBuilder):
(WebCore::RenderTreeBuilder::fullScreenBuilder): Deleted.
* Source/WebCore/rendering/updating/RenderTreeBuilderBlock.cpp:
(WebCore::RenderTreeBuilder::Block::attachIgnoringContinuation):
* Source/WebCore/rendering/updating/RenderTreeBuilderFullScreen.cpp: Removed.
* Source/WebCore/rendering/updating/RenderTreeBuilderFullScreen.h: Removed.
* Source/WebCore/rendering/updating/RenderTreeBuilderInline.cpp:
(WebCore::RenderTreeBuilder::Inline::splitInlines):
* Source/WebCore/rendering/updating/RenderTreeUpdater.cpp:
(WebCore::RenderTreeUpdater::createRenderer):


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