Add preliminary support for hw-accelerated tile rasterization.

cc/resources/worker_pool_perftest.cc

 // 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.
 
 #include "cc/resources/worker_pool.h"
 
 #include "base/time/time.h"
 #include "cc/base/completion_event.h"
 #include "cc/test/lap_timer.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 84 matching lines @@
       graph.set(leaf_task, leaf_node.Pass());
 
     if (root_node)
       graph.set(root_task, root_node.Pass());
 
     SetTaskGraph(&graph);
 
     tasks_.swap(tasks);
   }
 
+  void CheckForCompletedTasks() {
+    CheckForCompletedWorkerTasks();
+  }
+
  private:
   typedef std::vector<scoped_refptr<internal::WorkerPoolTask> > TaskVector;
 
   void BuildTaskGraph(TaskVector* tasks,
                       TaskGraph* graph,
                       internal::GraphNode* dependent_node,
                       internal::GraphNode* leaf_node,
                       unsigned current_depth,
                       unsigned max_depth,
                       unsigned num_children_per_node) {
@@ skipping 111 matching lines @@
   RunExecuteTasksTest("2_10", 2, 10);
   RunExecuteTasksTest("5_5", 5, 5);
   RunExecuteTasksTest("10_2", 10, 2);
   RunExecuteTasksTest("1000_1", 1000, 1);
   RunExecuteTasksTest("10_1", 10, 1);
 }
 
 }  // namespace
 
 }  // namespace cc