cc: Make image controller return a status with the callback.

cc/tiles/decoded_image_tracker.h

Index: cc/tiles/decoded_image_tracker.h
diff --git a/cc/tiles/decoded_image_tracker.h b/cc/tiles/decoded_image_tracker.h
index 2d303ee5fe9efa94182e0099131236d2a8c846cd..a6bfc616ec4385c8ea1e4a872f32edde4625f299 100644
--- a/cc/tiles/decoded_image_tracker.h
+++ b/cc/tiles/decoded_image_tracker.h
@@ -30,7 +30,7 @@ class CC_EXPORT DecodedImageTracker {
   ~DecodedImageTracker();
 
   void QueueImageDecode(sk_sp<const SkImage> image,
-                        const base::Closure& callback);
+                        const base::Callback<void(bool)>& callback);

[Khushal, 2017/02/17 23:56:38]

Add a comment about what the bool in the callback signifies?

[vmpstr, 2017/02/24 02:43:49]

Done.

   void NotifyFrameFinished();
 
  private:
@@ -41,8 +41,9 @@ class CC_EXPORT DecodedImageTracker {
     image_controller_ = controller;
   }
 
-  void ImageDecodeFinished(const base::Closure& callback,
-                           ImageController::ImageDecodeRequestId id);
+  void ImageDecodeFinished(const base::Callback<void(bool)>& callback,
+                           ImageController::ImageDecodeRequestId id,
+                           ImageController::ImageDecodeResult result);
 
   ImageController* image_controller_ = nullptr;
   std::vector<std::pair<ImageController::ImageDecodeRequestId, int>>