cc: Remove all traces of synchronous GPU rasterization

cc/test/layer_tree_test.cc

Index: cc/test/layer_tree_test.cc
diff --git a/cc/test/layer_tree_test.cc b/cc/test/layer_tree_test.cc
index 87c403573799e3ae0535244e755deeb0a69280a5..a39c452b17ba695bfff30763c378d32001c7790c 100644
--- a/cc/test/layer_tree_test.cc
+++ b/cc/test/layer_tree_test.cc
@@ -47,11 +47,6 @@ DrawResult TestHooks::PrepareToDrawOnThread(
   return draw_result;
 }
 
-scoped_ptr<Rasterizer> TestHooks::CreateRasterizer(
-    LayerTreeHostImpl* host_impl) {
-  return host_impl->LayerTreeHostImpl::CreateRasterizer();
-}
-
 void TestHooks::CreateResourceAndTileTaskWorkerPool(
     LayerTreeHostImpl* host_impl,
     scoped_ptr<TileTaskWorkerPool>* tile_task_worker_pool,
@@ -244,10 +239,6 @@ class LayerTreeHostImplForTesting : public LayerTreeHostImpl {
         block_notify_ready_to_activate_for_testing_(false),
         notify_ready_to_activate_was_blocked_(false) {}
 
-  scoped_ptr<Rasterizer> CreateRasterizer() override {
-    return test_hooks_->CreateRasterizer(this);
-  }
-
   void CreateResourceAndTileTaskWorkerPool(
       scoped_ptr<TileTaskWorkerPool>* tile_task_worker_pool,
       scoped_ptr<ResourcePool>* resource_pool,