cc: Add threaded GPU rasterization.

cc/resources/tile_task_worker_pool_perftest.cc

Index: cc/resources/tile_task_worker_pool_perftest.cc
diff --git a/cc/resources/tile_task_worker_pool_perftest.cc b/cc/resources/tile_task_worker_pool_perftest.cc
index 483b71f3add5593dfbc719cc91cfb1ae3cbd85ee..fe7959b0730aeea624079b97ad9ad1f2e5d8e381 100644
--- a/cc/resources/tile_task_worker_pool_perftest.cc
+++ b/cc/resources/tile_task_worker_pool_perftest.cc
@@ -9,6 +9,7 @@
 #include "cc/debug/lap_timer.h"
 #include "cc/output/context_provider.h"
 #include "cc/resources/bitmap_tile_task_worker_pool.h"
+#include "cc/resources/gpu_rasterizer.h"
 #include "cc/resources/gpu_tile_task_worker_pool.h"
 #include "cc/resources/one_copy_tile_task_worker_pool.h"
 #include "cc/resources/pixel_buffer_tile_task_worker_pool.h"
@@ -228,6 +229,7 @@ class TileTaskWorkerPoolPerfTestBase {
   FakeOutputSurfaceClient output_surface_client_;
   scoped_ptr<FakeOutputSurface> output_surface_;
   scoped_ptr<ResourceProvider> resource_provider_;
+  scoped_ptr<Rasterizer> rasterizer_;
   scoped_refptr<base::TestSimpleTaskRunner> task_runner_;
   scoped_ptr<TaskGraphRunner> task_graph_runner_;
   LapTimer timer_;
@@ -267,7 +269,7 @@ class TileTaskWorkerPoolPerfTest
         Create3dOutputSurfaceAndResourceProvider();
         tile_task_worker_pool_ = GpuTileTaskWorkerPool::Create(
             task_runner_.get(), task_graph_runner_.get(),
-            resource_provider_.get());
+            static_cast<GpuRasterizer*>(rasterizer_.get()));
         break;
       case TILE_TASK_WORKER_POOL_TYPE_BITMAP:
         CreateSoftwareOutputSurfaceAndResourceProvider();