Remove TiledBacking / TileCache code

Source/WebCore/page/ChromeClient.h

Index: Source/WebCore/page/ChromeClient.h
diff --git a/Source/WebCore/page/ChromeClient.h b/Source/WebCore/page/ChromeClient.h
index 2d2abaa80530fb5bbe5588fd0a039b8b0d2c9cac..10ca0343b2a52a0dbab51862920fea2f9d08dc9f 100644
--- a/Source/WebCore/page/ChromeClient.h
+++ b/Source/WebCore/page/ChromeClient.h
@@ -155,9 +155,6 @@ public:
     virtual void invalidateContentsAndRootView(const IntRect&) = 0;
     virtual void invalidateContentsForSlowScroll(const IntRect&) = 0;
     virtual void scroll(const IntSize&, const IntRect&, const IntRect&) = 0;
-#if USE(TILED_BACKING_STORE)
-    virtual void delegatedScrollRequested(const IntPoint&) = 0;
-#endif
     virtual IntPoint screenToRootView(const IntPoint&) const = 0;
     virtual IntRect rootViewToScreen(const IntRect&) const = 0;
     virtual PlatformPageClient platformPageClient() const = 0;
@@ -286,10 +283,6 @@ public:
     virtual void fullScreenRendererChanged(RenderBox*) { }
     virtual void setRootFullScreenLayer(GraphicsLayer*) { }
 
-#if USE(TILED_BACKING_STORE)
-    virtual IntRect visibleRectForTiledBackingStore() const { return IntRect(); }
-#endif
-
 #if PLATFORM(MAC)
     virtual NSResponder *firstResponder() { return 0; }
     virtual void makeFirstResponder(NSResponder *) { }