Remove Source/WebCore/display and LayoutFormattingContextEnabled pref…

…erence

https://bugs.webkit.org/show_bug.cgi?id=265505
rdar://118914665

Reviewed by Simon Fraser.

This code is currently not being used, it was a prototype of LFC painting, but perhaps may not be the future.

Remove it to avoid unnecessary maintenance and to free up the Display namespace.

* Source/WTF/Scripts/Preferences/UnifiedWebPreferences.yaml:
* Source/WebCore/CMakeLists.txt:
* Source/WebCore/Headers.cmake:
* Source/WebCore/Sources.txt:
* Source/WebCore/display/DisplayGeometryTypes.h: Removed.
* Source/WebCore/display/DisplayTree.cpp: Removed.
* Source/WebCore/display/DisplayTree.h: Removed.
* Source/WebCore/display/DisplayTreeBuilder.cpp: Removed.
* Source/WebCore/display/DisplayTreeBuilder.h: Removed.
* Source/WebCore/display/DisplayView.cpp: Removed.
* Source/WebCore/display/DisplayView.h: Removed.
* Source/WebCore/display/ReadMe.md: Removed.
* Source/WebCore/display/compositing/DisplayLayerController.cpp: Removed.
* Source/WebCore/display/compositing/DisplayLayerController.h: Removed.
* Source/WebCore/display/css/DisplayBox.cpp: Removed.
* Source/WebCore/display/css/DisplayBox.h: Removed.
* Source/WebCore/display/css/DisplayBoxClip.cpp: Removed.
* Source/WebCore/display/css/DisplayBoxClip.h: Removed.
* Source/WebCore/display/css/DisplayBoxDecorationData.cpp: Removed.
* Source/WebCore/display/css/DisplayBoxDecorationData.h: Removed.
* Source/WebCore/display/css/DisplayBoxDecorationPainter.cpp: Removed.
* Source/WebCore/display/css/DisplayBoxDecorationPainter.h: Removed.
* Source/WebCore/display/css/DisplayBoxFactory.cpp: Removed.
* Source/WebCore/display/css/DisplayBoxFactory.h: Removed.
* Source/WebCore/display/css/DisplayBoxModelBox.cpp: Removed.
* Source/WebCore/display/css/DisplayBoxModelBox.h: Removed.
* Source/WebCore/display/css/DisplayBoxPainter.cpp: Removed.
* Source/WebCore/display/css/DisplayBoxPainter.h: Removed.
* Source/WebCore/display/css/DisplayBoxRareGeometry.cpp: Removed.
* Source/WebCore/display/css/DisplayBoxRareGeometry.h: Removed.
* Source/WebCore/display/css/DisplayCSSPainter.cpp: Removed.
* Source/WebCore/display/css/DisplayCSSPainter.h: Removed.
* Source/WebCore/display/css/DisplayContainerBox.cpp: Removed.
* Source/WebCore/display/css/DisplayContainerBox.h: Removed.
* Source/WebCore/display/css/DisplayFillLayerImageGeometry.cpp: Removed.
* Source/WebCore/display/css/DisplayFillLayerImageGeometry.h: Removed.
* Source/WebCore/display/css/DisplayImageBox.cpp: Removed.
* Source/WebCore/display/css/DisplayImageBox.h: Removed.
* Source/WebCore/display/css/DisplayPaintingContext.h: Removed.
* Source/WebCore/display/css/DisplayReplacedBox.cpp: Removed.
* Source/WebCore/display/css/DisplayReplacedBox.h: Removed.
* Source/WebCore/display/css/DisplayStackingItem.cpp: Removed.
* Source/WebCore/display/css/DisplayStackingItem.h: Removed.
* Source/WebCore/display/css/DisplayStyle.cpp: Removed.
* Source/WebCore/display/css/DisplayStyle.h: Removed.
* Source/WebCore/display/css/DisplayTextBox.cpp: Removed.
* Source/WebCore/display/css/DisplayTextBox.h: Removed.
* Source/WebCore/page/LocalFrameView.cpp:
(WebCore::LocalFrameView::flushCompositingStateForThisFrame):
(WebCore::LocalFrameView::setIsInWindow):
(WebCore::LocalFrameView::existingDisplayView const): Deleted.
(WebCore::LocalFrameView::displayView): Deleted.
* Source/WebCore/page/LocalFrameView.h:
* Source/WebCore/page/Page.cpp:
(WebCore::Page::doAfterUpdateRendering):
* Tools/DumpRenderTree/mac/DumpRenderTree.mm:
(setWebPreferencesForTestOptions):

Canonical link: https://commits.webkit.org/271264@main

Source/WTF/Scripts/Preferences/UnifiedWebPreferences.yaml

@@ -3657,20 +3657,6 @@ LayoutFallbackWidth:
     WebCore:
       default: 980
 
-LayoutFormattingContextEnabled:
-  type: bool
-  status: unstable
-  category: dom
-  humanReadableName: "Full next-generation layout (LFC)"
-  humanReadableDescription: "Enable full next-generation layout (LFC)"
-  defaultValue:
-    WebKitLegacy:
-      default: false
-    WebKit:
-      default: false
-    WebCore:
-      default: false
-
 LayoutViewportHeightExpansionFactor:
   type: double
   status: embedder

Source/WebCore/CMakeLists.txt

@@ -98,9 +98,6 @@ set(WebCore_PRIVATE_INCLUDE_DIRECTORIES
     "${WEBCORE_DIR}/css/typedom/numeric"
     "${WEBCORE_DIR}/css/typedom/transform"
     "${WEBCORE_DIR}/cssjit"
-    "${WEBCORE_DIR}/display"
-    "${WEBCORE_DIR}/display/compositing"
-    "${WEBCORE_DIR}/display/css"
     "${WEBCORE_DIR}/dom"
     "${WEBCORE_DIR}/dom/messageports"
     "${WEBCORE_DIR}/domjit"

Source/WebCore/Headers.cmake

@@ -886,19 +886,6 @@ set(WebCore_PRIVATE_FRAMEWORK_HEADERS
 
     cssjit/CompiledSelector.h
 
-    display/DisplayTree.h
-    display/DisplayTreeBuilder.h
-    display/DisplayView.h
-
-    display/compositing/DisplayLayerController.h
-
-    display/css/DisplayBox.h
-    display/css/DisplayCSSPainter.h
-    display/css/DisplayContainerBox.h
-    display/css/DisplayImageBox.h
-    display/css/DisplayReplacedBox.h
-    display/css/DisplayStyle.h
-
     dom/AbortSignal.h
     dom/AbstractRange.h
     dom/ActiveDOMCallback.h

Source/WebCore/Sources.txt

@@ -1021,26 +1021,6 @@ css/typedom/transform/CSSTransformComponent.cpp
 css/typedom/transform/CSSTransformValue.cpp
 css/typedom/transform/CSSTranslate.cpp
 cssjit/SelectorCompiler.cpp
-display/compositing/DisplayLayerController.cpp
-display/css/DisplayBox.cpp
-display/css/DisplayBoxClip.cpp
-display/css/DisplayBoxDecorationData.cpp
-display/css/DisplayBoxDecorationPainter.cpp
-display/css/DisplayBoxFactory.cpp
-display/css/DisplayBoxModelBox.cpp
-display/css/DisplayBoxPainter.cpp
-display/css/DisplayBoxRareGeometry.cpp
-display/css/DisplayContainerBox.cpp
-display/css/DisplayCSSPainter.cpp
-display/css/DisplayFillLayerImageGeometry.cpp
-display/css/DisplayImageBox.cpp
-display/css/DisplayReplacedBox.cpp
-display/css/DisplayStackingItem.cpp
-display/css/DisplayStyle.cpp
-display/css/DisplayTextBox.cpp
-display/DisplayTree.cpp
-display/DisplayTreeBuilder.cpp
-display/DisplayView.cpp
 dom/AbortController.cpp
 dom/AbortSignal.cpp
 dom/AbstractRange.cpp