cc: Cleanup Layer::SetNeedsDisplayInRect

cc/layers/image_layer.cc

 // Copyright 2010 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/layers/image_layer.h"
 
 #include "base/compiler_specific.h"
 #include "cc/resources/image_layer_updater.h"
 #include "cc/resources/layer_updater.h"
 #include "cc/resources/prioritized_resource.h"
@@ skipping 25 matching lines @@
 void ImageLayer::SetTexturePriorities(const PriorityCalculator& priority_calc) {
   // Update the tile data before creating all the layer's tiles.
   UpdateTileSizeAndTilingOption();
 
   TiledLayer::SetTexturePriorities(priority_calc);
 }
 
 bool ImageLayer::Update(ResourceUpdateQueue* queue,
                         const OcclusionTracker* occlusion) {
   CreateUpdaterIfNeeded();
-  if (needs_display_) {
-    updater_->set_bitmap(bitmap_);
+  if (!updater_->UsingBitmap(bitmap_)) {
+    updater_->SetBitmap(bitmap_);
     UpdateTileSizeAndTilingOption();
     InvalidateContentRect(gfx::Rect(content_bounds()));
-    needs_display_ = false;
   }
   return TiledLayer::Update(queue, occlusion);
 }
 
 void ImageLayer::CreateUpdaterIfNeeded() {
   if (updater_.get())
     return;
 
   updater_ = ImageLayerUpdater::Create();
   GLenum texture_format =
@@ skipping 27 matching lines @@
   return static_cast<float>(bitmap_.width()) / bounds().width();
 }
 
 float ImageLayer::ImageContentsScaleY() const {
   if (bounds().IsEmpty() || bitmap_.height() == 0)
     return 1;
   return static_cast<float>(bitmap_.height()) / bounds().height();
 }
 
 }  // namespace cc