Also renamed a few functions and data members to match.

Fixes <http://webkit.org/b/52898> WKCACFLayerRenderer sounds like a render object, but isn't

Reviewed by Simon Fraser.

Source/WebCore:

* WebCore.vcproj/WebCore.vcproj: Updated files' names and paths.

* WebCore.vcproj/WebCoreQuartzCore.vsprops: Added platform/graphics/ca/win to the include
path.

* WebCore.vcproj/copyForwardingHeaders.cmd: Copy headers from platform/graphics/ca/win, too.

* platform/graphics/ca/win/CACFLayerTreeHost.cpp: Renamed from Source/WebCore/platform/graphics/win/WKCACFLayerRenderer.cpp.
* platform/graphics/ca/win/CACFLayerTreeHost.h: Renamed from Source/WebCore/platform/graphics/win/WKCACFLayerRenderer.h.

* platform/graphics/ca/win/PlatformCALayerWin.cpp:
* platform/graphics/win/MediaPlayerPrivateFullscreenWindow.cpp:
* platform/graphics/win/MediaPlayerPrivateFullscreenWindow.h:
Updated for renames.

Source/WebKit/win:

Update for WKCACFLayerRenderer -> CACFLayerTreeHost rename

Also renamed WebView::m_layerRenderer to WebView::m_layerTreeHost to match.

* WebPreferences.cpp:
* WebView.cpp:
(WebView::setAcceleratedCompositing): Also made sure to remove our HWND from the layer tree
host before we get rid of the layer tree host itself.
* WebView.h:

Source/WebKit2:

Update for WKCACFLayerRenderer -> CACFLayerView rename

* WebProcess/WebPage/win/LayerBackedDrawingAreaWin.cpp: Just removed all the unnecessary
 #includes.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@76370 268f45cc-cd09-0410-ab3c-d52691b4dbfc