cc: Cleanup Layer::SetNeedsDisplayInRect

cc/resources/image_layer_updater.cc

 // Copyright 2012 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.
 
 #include "cc/resources/image_layer_updater.h"
 #include "cc/resources/prioritized_resource.h"
 #include "cc/resources/resource_update_queue.h"
 
 namespace cc {
 
@@ skipping 38 matching lines @@
       gfx::Vector2d(clipped_source_rect.origin() - source_rect.origin());
 
   ResourceUpdate upload = ResourceUpdate::Create(
       texture, &bitmap_, image_rect, clipped_source_rect, clipped_dest_offset);
   if (partial_update)
     queue->AppendPartialUpload(upload);
   else
     queue->AppendFullUpload(upload);
 }
 
+void ImageLayerUpdater::SetBitmap(const SkBitmap& bitmap) {
+  DCHECK(bitmap.pixelRef());
+  bitmap_ = bitmap;
+}
+
+bool ImageLayerUpdater::UsingBitmap(const SkBitmap& bitmap) const {
+  return bitmap.pixelRef() == bitmap_.pixelRef();
+}
+
 }  // namespace cc