Add preliminary support for hw-accelerated tile rasterization.

cc/resources/worker_pool_unittest.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 <vector>
 
 #include "cc/base/completion_event.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 98 matching lines @@
 
     scheduled_tasks_completion_.reset(new CompletionEvent);
 
     SetTaskGraph(&new_graph);
 
     dependents_.swap(new_dependents);
     completion_task_.swap(new_completion_task);
     tasks_.swap(new_tasks);
   }
 
+  void CheckForCompletedTasks() {
+    CheckForCompletedWorkerTasks();
+  }
+
   void WaitForTasksToComplete() {
     DCHECK(scheduled_tasks_completion_);
     scheduled_tasks_completion_->Wait();
   }
 
  private:
   typedef std::vector<scoped_refptr<internal::WorkerPoolTask> > TaskVector;
 
   void OnTasksCompleted() {
     DCHECK(scheduled_tasks_completion_);
@@ skipping 256 matching lines @@
   EXPECT_EQ(1u, run_task_ids()[2]);
   ASSERT_EQ(3u, on_task_completed_ids().size());
   EXPECT_EQ(2u, on_task_completed_ids()[0]);
   EXPECT_EQ(1u, on_task_completed_ids()[1]);
   EXPECT_EQ(0u, on_task_completed_ids()[2]);
 }
 
 }  // namespace
 
 }  // namespace cc