[webkit-changes] [WebKit/WebKit] 4c8702: Reduce build times by refactoring FrameView.h

[Jer Noble]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 4c8702ace4ab5ce127a144a8339bfee8f5b48a24
      https://github.com/WebKit/WebKit/commit/4c8702ace4ab5ce127a144a8339bfee8f5b48a24
  Author: Jer Noble <jer.noble at apple.com>
  Date:   2023-02-07 (Tue, 07 Feb 2023)

  Changed paths:
    M Source/WebCore/css/ComputedStyleExtractor.cpp
    M Source/WebCore/html/CanvasBase.cpp
    M Source/WebCore/html/HTMLAttachmentElement.cpp
    M Source/WebCore/page/FrameView.cpp
    M Source/WebCore/page/FrameView.h
    M Source/WebCore/platform/graphics/NullGraphicsContext.h
    M Source/WebCore/platform/graphics/TiledBacking.h
    M Source/WebCore/platform/graphics/ca/TileController.cpp
    M Source/WebCore/platform/graphics/ca/TileController.h
    M Source/WebCore/rendering/AttachmentLayout.h
    M Source/WebCore/rendering/svg/SVGRenderTreeAsText.cpp
    M Source/WebKit/WebProcess/InjectedBundle/DOM/InjectedBundleNodeHandle.cpp
    M Source/WebKit/WebProcess/InjectedBundle/InjectedBundleHitTestResult.cpp
    M Source/WebKit/WebProcess/WebPage/CoordinatedGraphics/LayerTreeHostTextureMapper.cpp
    M Source/WebKit/WebProcess/WebPage/FindController.cpp
    M Source/WebKit/WebProcess/WebPage/wc/GraphicsLayerWC.cpp

  Log Message:
  -----------
  Reduce build times by refactoring FrameView.h
https://bugs.webkit.org/show_bug.cgi?id=251626
rdar://104975520

Reviewed by Brent Fulgham.

Forward declare more things in FrameView.h and remove #include statements.

In order to forward-declare some enumerations used in FrameView.h, those enums
needed to be moved out of their classes' scopes, and in one case, need to be
converted to an OptionSet.

Canonical link: https://commits.webkit.org/259960@main