Remove TiledBacking / TileCache code

Source/WebCore/page/FrameView.h

Index: Source/WebCore/page/FrameView.h
diff --git a/Source/WebCore/page/FrameView.h b/Source/WebCore/page/FrameView.h
index a020315b70e556c6340b3deed124c45beca5a590..e8fecb95668ef374d55fb75940515316e9353262 100644
--- a/Source/WebCore/page/FrameView.h
+++ b/Source/WebCore/page/FrameView.h
@@ -115,14 +115,9 @@ public:
 
     void serviceScriptedAnimations(double monotonicAnimationStartTime);
 
-#if USE(ACCELERATED_COMPOSITING)
     void updateCompositingLayersAfterStyleChange();
     void updateCompositingLayersAfterLayout();
 
-    void clearBackingStores();
-    void restoreBackingStores();
-#endif
-
     bool hasCompositedContent() const;
     bool hasCompositingAncestor() const;
     void enterCompositingMode();
@@ -404,8 +399,6 @@ private:
     virtual void contentsResized() OVERRIDE;
     virtual void visibleContentsResized();
 
-    virtual void delegatesScrollingDidChange();
-
     // Override ScrollView methods to do point conversion via renderers, in order to
     // take transforms into account.
     virtual IntRect convertToContainingView(const IntRect&) const OVERRIDE;