cc: Add image decode control in the compositor.

cc/playback/draw_image.h

Index: cc/playback/draw_image.h
diff --git a/cc/playback/draw_image.h b/cc/playback/draw_image.h
index 3dbce12e5323570c892415da1549ffc54bb13aba..10a4d8fcf1cfc7cfc6c61fc510b9f3e1b1247e4a 100644
--- a/cc/playback/draw_image.h
+++ b/cc/playback/draw_image.h
@@ -35,6 +35,25 @@ class DrawImage {
   SkFilterQuality filter_quality_;
 };
 
+class DecodedDrawImage {
+ public:
+  DecodedDrawImage(const SkImage* image,
+                   const SkSize& scale_adjustment,
+                   SkFilterQuality filter_quality)
+      : image_(image),
+        scale_adjustment_(scale_adjustment),
+        filter_quality_(filter_quality) {}
+
+  const SkImage* image() const { return image_; }
+  const SkSize& scale_adjustment() const { return scale_adjustment_; }
+  SkFilterQuality filter_quality() const { return filter_quality_; }
+
+ private:
+  const SkImage* image_;
+  SkSize scale_adjustment_;
+  SkFilterQuality filter_quality_;
+};
+
 }  // namespace cc
 
 #endif  // CC_PLAYBACK_DRAW_IMAGE_H_