Tile Compression

cc/resources/tile_manager.h

Index: cc/resources/tile_manager.h
diff --git a/cc/resources/tile_manager.h b/cc/resources/tile_manager.h
index 638fecbe2cb643bec5b819ec27b883b4274c005f..8aa6f8d02885bb3117132756a934753b651cac9a 100644
--- a/cc/resources/tile_manager.h
+++ b/cc/resources/tile_manager.h
@@ -102,6 +102,7 @@ class CC_EXPORT TileManager : public TileTaskRunnerClient,
       base::SequencedTaskRunner* task_runner,
       ResourcePool* resource_pool,
       TileTaskRunner* tile_task_runner,
+      int compression_threshold,
       RenderingStatsInstrumentation* rendering_stats_instrumentation,
       size_t scheduled_raster_task_limit);
   ~TileManager() override;
@@ -134,8 +135,8 @@ class CC_EXPORT TileManager : public TileTaskRunnerClient,
     for (size_t i = 0; i < tiles.size(); ++i) {
       ManagedTileState& mts = tiles[i]->managed_state();
 
-      mts.draw_info.resource_ =
-          resource_pool_->AcquireResource(tiles[i]->size());
+      mts.draw_info.resource_ = resource_pool_->AcquireResource(
+          tiles[i]->size(), FORMAT_USAGE_NATIVE);
     }
   }
 
@@ -176,6 +177,7 @@ class CC_EXPORT TileManager : public TileTaskRunnerClient,
               const scoped_refptr<base::SequencedTaskRunner>& task_runner,
               ResourcePool* resource_pool,
               TileTaskRunner* tile_task_runner,
+              int compression_threshold,
               RenderingStatsInstrumentation* rendering_stats_instrumentation,
               size_t scheduled_raster_task_limit);
 
@@ -228,6 +230,7 @@ class CC_EXPORT TileManager : public TileTaskRunnerClient,
                              const RasterSource::SolidColorAnalysis& analysis,
                              bool was_canceled);
 
+  ResourceFormatUsage DetermineResourceFormatUsage(const Tile* tile) const;
   void FreeResourcesForTile(Tile* tile);
   void FreeResourcesForTileAndNotifyClientIfTileWasReadyToDraw(Tile* tile);
   scoped_refptr<ImageDecodeTask> CreateImageDecodeTask(Tile* tile,
@@ -277,6 +280,8 @@ class CC_EXPORT TileManager : public TileTaskRunnerClient,
 
   std::vector<Tile*> released_tiles_;
 
+  int compression_threshold_;
+
   ResourceFormat resource_format_;
 
   // Queue used when scheduling raster tasks.