cc: Low quality support for low res tiles

cc/resources/managed_tile_state.h

 // Copyright 2013 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_RESOURCES_MANAGED_TILE_STATE_H_
 #define CC_RESOURCES_MANAGED_TILE_STATE_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "cc/resources/platform_color.h"
 #include "cc/resources/raster_worker_pool.h"
 #include "cc/resources/resource_pool.h"
 #include "cc/resources/resource_provider.h"
 #include "cc/resources/tile_manager.h"
 
 namespace cc {
 
+enum TileRasterFlags {
+  INVALID_RASTER_FLAG = 1 << 0,
+  USE_LCD_TEXT = 1 << 1,
+  USE_HIGH_QUALITY = 1 << 2
+};
+
 // This is state that is specific to a tile that is
 // managed by the TileManager.
 class CC_EXPORT ManagedTileState {
  public:
   class CC_EXPORT TileVersion {
     public:
       enum Mode {
         RESOURCE_MODE,
         SOLID_COLOR_MODE,
         PICTURE_PILE_MODE,
@@ skipping 71 matching lines @@
       Mode mode_;
       SkColor solid_color_;
 
       // TODO(reveman): Eliminate the need for both |resource_id_|
       // and |resource| by re-factoring the "force upload"
       // mechanism. crbug.com/245767
       ResourceProvider::ResourceId resource_id_;
       scoped_ptr<ResourcePool::Resource> resource_;
       GLenum resource_format_;
       bool forced_upload_;
+      unsigned raster_flags_;
   };
 
 
   ManagedTileState();
   ~ManagedTileState();
 
   scoped_ptr<base::Value> AsValue() const;
 
   // Persisted state: valid all the time.
   TileVersion tile_version;
@@ skipping 20 matching lines @@
   TileManagerBin gpu_memmgr_stats_bin;
   TileResolution resolution;
   bool required_for_activation;
   float time_to_needed_in_seconds;
   float distance_to_visible_in_pixels;
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_MANAGED_TILE_STATE_H_