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

cc/tiles/checker_image_tracker.h

 // Copyright 2017 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_TILES_CHECKER_IMAGE_TRACKER_H_
 #define CC_TILES_CHECKER_IMAGE_TRACKER_H_
 
 #include <unordered_map>
 #include <vector>
 
@@ skipping 37 matching lines @@
                                         ImageIdFlatSet* checkered_images,
                                         WhichTree tree);
 
   // Returns the set of images to invalidate on the sync tree.
   const ImageIdFlatSet& TakeImagesToInvalidateOnSyncTree();
 
   void DidActivateSyncTree();
 
  private:
   void DidFinishImageDecode(ImageId image_id,
-                            ImageController::ImageDecodeRequestId request_id);
+                            ImageController::ImageDecodeRequestId request_id,
+                            ImageController::ImageDecodeResult result);
 
   // Returns true if the decode for |image| will be deferred to the image decode
   // service and it should be be skipped during raster.
   bool ShouldCheckerImage(const sk_sp<const SkImage>& image,
                           WhichTree tree) const;
 
   void ScheduleImageDecodeIfNecessary(const sk_sp<const SkImage>& image);
 
   ImageController* image_controller_;
   CheckerImageTrackerClient* client_;
@@ skipping 22 matching lines @@
   // A map of image id to image decode request id for images to be unlocked.
   std::unordered_map<ImageId, ImageController::ImageDecodeRequestId>
       image_id_to_decode_request_id_;
 
   base::WeakPtrFactory<CheckerImageTracker> weak_factory_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TILES_CHECKER_IMAGE_TRACKER_H_