cc: Apply the layer's initial CSS scale to the contentsScale to render text at the right resolution.

cc/CCLayerTreeHostCommon.h

Index: cc/CCLayerTreeHostCommon.h
diff --git a/cc/CCLayerTreeHostCommon.h b/cc/CCLayerTreeHostCommon.h
index d8710e95e5a0a2c52f07ecaaa429fc75b7ebf7e9..97a5759a775378a530a356809d006e330110f7ea 100644
--- a/cc/CCLayerTreeHostCommon.h
+++ b/cc/CCLayerTreeHostCommon.h
@@ -21,8 +21,8 @@ class CCLayerTreeHostCommon {
 public:
     static IntRect calculateVisibleRect(const IntRect& targetSurfaceRect, const IntRect& layerBoundRect, const WebKit::WebTransformationMatrix&);
 
-    static void calculateDrawTransforms(LayerChromium* rootLayer, const IntSize& deviceViewportSize, float deviceScaleFactor, int maxTextureSize, Vector<RefPtr<LayerChromium> >& renderSurfaceLayerList);
-    static void calculateDrawTransforms(CCLayerImpl* rootLayer, const IntSize& deviceViewportSize, float deviceScaleFactor, CCLayerSorter*, int maxTextureSize, Vector<CCLayerImpl*>& renderSurfaceLayerList);
+    static void calculateDrawTransforms(LayerChromium* rootLayer, const IntSize& deviceViewportSize, float deviceScaleFactor, float pageScaleFactor, int maxTextureSize, Vector<RefPtr<LayerChromium> >& renderSurfaceLayerList);
+    static void calculateDrawTransforms(CCLayerImpl* rootLayer, const IntSize& deviceViewportSize, float deviceScaleFactor, float pageScaleFactor, CCLayerSorter*, int maxTextureSize, Vector<CCLayerImpl*>& renderSurfaceLayerList);
 
     static void calculateVisibleRects(Vector<CCLayerImpl*>& renderSurfaceLayerList);
     static void calculateVisibleRects(Vector<RefPtr<LayerChromium> >& renderSurfaceLayerList);