cc: Add image decode control in the compositor.

cc/playback/draw_image.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_PLAYBACK_DRAW_IMAGE_H_
 #define CC_PLAYBACK_DRAW_IMAGE_H_
 
 #include "third_party/skia/include/core/SkFilterQuality.h"
 #include "third_party/skia/include/core/SkImage.h"
 #include "third_party/skia/include/core/SkMatrix.h"
@@ skipping 17 matching lines @@
         image_, SkSize::Make(scale_.width() * scale, scale_.height() * scale),
         filter_quality_);
   }
 
  private:
   const SkImage* image_;
   SkSize scale_;
   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_