Add preliminary support for hw-accelerated tile rasterization.

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 149 matching lines @@
   scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue());
   state->SetInteger("completed_count", stats.completed_count);
   state->SetInteger("canceled_count", stats.canceled_count);
   return state.PassAs<base::Value>();
 }
 
 // static
 scoped_ptr<TileManager> TileManager::Create(
     TileManagerClient* client,
     ResourceProvider* resource_provider,
+    ContextProvider* context_provider,
     size_t num_raster_threads,
     RenderingStatsInstrumentation* rendering_stats_instrumentation,
     bool use_map_image,
     size_t max_transfer_buffer_usage_bytes,
     size_t max_raster_usage_bytes,
     GLenum map_image_texture_target) {
   return make_scoped_ptr(
       new TileManager(client,
                       resource_provider,
                       use_map_image ?
                       ImageRasterWorkerPool::Create(
                           resource_provider,
+                          context_provider,
                           num_raster_threads,
                           map_image_texture_target) :
                       PixelBufferRasterWorkerPool::Create(
                           resource_provider,
+                          context_provider,
                           num_raster_threads,
                           max_transfer_buffer_usage_bytes),
                       num_raster_threads,
                       max_raster_usage_bytes,
                       rendering_stats_instrumentation));
 }
 
 TileManager::TileManager(
     TileManagerClient* client,
     ResourceProvider* resource_provider,
@@ skipping 683 matching lines @@
   return RasterWorkerPool::CreateRasterTask(
       const_resource,
       tile->picture_pile(),
       tile->content_rect(),
       tile->contents_scale(),
       mts.raster_mode,
       mts.resolution,
       tile->layer_id(),
       static_cast<const void *>(tile),
       tile->source_frame_number(),
+      tile->use_gpu_rasterization(),
       rendering_stats_instrumentation_,
       base::Bind(&TileManager::OnRasterTaskCompleted,
                  base::Unretained(this),
                  tile->id(),
                  base::Passed(&resource),
                  mts.raster_mode),
       &decode_tasks);
 }
 
 void TileManager::OnImageDecodeTaskCompleted(
@@ skipping 83 matching lines @@
                                                          flags));
   DCHECK(tiles_.find(tile->id()) == tiles_.end());
 
   tiles_[tile->id()] = tile;
   used_layer_counts_[tile->layer_id()]++;
   prioritized_tiles_dirty_ = true;
   return tile;
 }
 
 }  // namespace cc