cc: Add support for partial swaps when using impl-side painting.

cc/resources/tile_manager.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/tile_manager.h"
 
 #include <algorithm>
 #include <limits>
 #include <string>
 
@@ skipping 1205 matching lines @@
     tile_version.set_solid_color(analysis.solid_color);
     resource_pool_->ReleaseResource(resource.Pass());
   } else {
     tile_version.set_use_resource();
     tile_version.resource_ = resource.Pass();
 
     bytes_releasable_ += BytesConsumedIfAllocated(tile);
     ++resources_releasable_;
   }
 
+  client_->NotifyTileInitialized(tile);
+
   FreeUnusedResourcesForTile(tile);
   if (tile->priority(ACTIVE_TREE).distance_to_visible == 0.f)
     did_initialize_visible_tile_ = true;
 }
 
 scoped_refptr<Tile> TileManager::CreateTile(PicturePileImpl* picture_pile,
                                             const gfx::Size& tile_size,
                                             const gfx::Rect& content_rect,
                                             const gfx::Rect& opaque_rect,
                                             float contents_scale,
@@ skipping 412 matching lines @@
 
   if (b_priority.resolution != a_priority.resolution) {
     return (prioritize_low_res && b_priority.resolution == LOW_RESOLUTION) ||
            (!prioritize_low_res && b_priority.resolution == HIGH_RESOLUTION) ||
            (a_priority.resolution == NON_IDEAL_RESOLUTION);
   }
   return a_priority.IsHigherPriorityThan(b_priority);
 }
 
 }  // namespace cc