Limit image filtering during scale animations

cc/playback/image_hijack_canvas.h

Index: cc/playback/image_hijack_canvas.h
diff --git a/cc/playback/image_hijack_canvas.h b/cc/playback/image_hijack_canvas.h
index 07dc185a94c783e5ce346c4b651a4a33e4817996..b2ac8f0285692eeeafc4d458ee18a97e4be4a3bf 100644
--- a/cc/playback/image_hijack_canvas.h
+++ b/cc/playback/image_hijack_canvas.h
@@ -17,7 +17,8 @@ class ImageHijackCanvas : public SkNWayCanvas {
  public:
   ImageHijackCanvas(int width,
                     int height,
-                    ImageDecodeController* image_decode_controller);
+                    ImageDecodeController* image_decode_controller,
+                    SkFilterQuality max_quality);
 
  private:
   // Ensure that pictures are unpacked by this canvas, instead of being
@@ -42,6 +43,8 @@ class ImageHijackCanvas : public SkNWayCanvas {
 
   ImageDecodeController* image_decode_controller_;
 
+  SkFilterQuality max_quality_;
+
   DISALLOW_COPY_AND_ASSIGN(ImageHijackCanvas);
 };