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

cc/layer_tree_host_common.h

Index: cc/layer_tree_host_common.h
diff --git a/cc/layer_tree_host_common.h b/cc/layer_tree_host_common.h
index 01dc41e40dc332f1c37dbdeda61b8a3848d3d6b1..d22c8f07db5f6bcfcbecd75ca4d9142e8195f060 100644
--- a/cc/layer_tree_host_common.h
+++ b/cc/layer_tree_host_common.h
@@ -22,8 +22,8 @@ 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, std::vector<scoped_refptr<LayerChromium> >& renderSurfaceLayerList);
-    static void calculateDrawTransforms(CCLayerImpl* rootLayer, const IntSize& deviceViewportSize, float deviceScaleFactor, CCLayerSorter*, int maxTextureSize, std::vector<CCLayerImpl*>& renderSurfaceLayerList);
+    static void calculateDrawTransforms(LayerChromium* rootLayer, const IntSize& deviceViewportSize, float deviceScaleFactor, float pageScaleFactor, int maxTextureSize, std::vector<scoped_refptr<LayerChromium> >& renderSurfaceLayerList);
+    static void calculateDrawTransforms(CCLayerImpl* rootLayer, const IntSize& deviceViewportSize, float deviceScaleFactor, float pageScaleFactor, CCLayerSorter*, int maxTextureSize, std::vector<CCLayerImpl*>& renderSurfaceLayerList);
 
     // Performs hit testing for a given renderSurfaceLayerList.
     static CCLayerImpl* findLayerThatIsHitByPoint(const IntPoint& viewportPoint, std::vector<CCLayerImpl*>& renderSurfaceLayerList);