cc: Add a blocksPendingCommit flag to LayerImpl

cc/tiled_layer.cc

 // Copyright 2011 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/tiled_layer.h"
 
 #include "base/basictypes.h"
 #include "build/build_config.h"
 #include "cc/layer_impl.h"
 #include "cc/layer_tree_host.h"
@@ skipping 201 matching lines @@
             tiledLayer->pushInvalidTile(i, j);
             continue;
         }
 
         tiledLayer->pushTileProperties(i, j, tile->managedResource()->resourceId(), tile->opaqueRect(), tile->managedResource()->contentsSwizzled());
     }
     for (std::vector<UpdatableTile*>::const_iterator iter = invalidTiles.begin(); iter != invalidTiles.end(); ++iter)
         m_tiler->takeTile((*iter)->i(), (*iter)->j());
 }
 
+bool TiledLayer::blocksPendingCommit() const
+{
+    return true;
+}
+
 PrioritizedResourceManager* TiledLayer::resourceManager() const
 {
     if (!layerTreeHost())
         return 0;
     return layerTreeHost()->contentsTextureManager();
 }
 
 void TiledLayer::setLayerTreeHost(LayerTreeHost* host)
 {
     if (host && host != layerTreeHost()) {
@@ skipping 520 matching lines @@
     gfx::Rect prepaintRect = visibleContentRect();
     prepaintRect.Inset(-m_tiler->tileSize().width() * prepaintColumns,
                        -m_tiler->tileSize().height() * prepaintRows);
     gfx::Rect contentRect(gfx::Point(), contentBounds());
     prepaintRect.Intersect(contentRect);
 
     return prepaintRect;
 }
 
 }  // namespace cc