Include-what-you-use for ThreadTaskRunnerHandle.

device/wake_lock/wake_lock_service_context_unittest.cc

 // Copyright 2015 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 "device/wake_lock/wake_lock_service_context.h"
 
 #include <memory>
 
 #include "base/message_loop/message_loop.h"
 #include "base/process/kill.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace device {
 
 class WakeLockServiceContextTest : public testing::Test {
  public:
   WakeLockServiceContextTest()
       : wake_lock_service_context_(
             base::ThreadTaskRunnerHandle::Get(),
             base::Bind(&WakeLockServiceContextTest::GetNativeView,
@@ skipping 33 matching lines @@
   EXPECT_TRUE(HasWakeLock());
 
   // Remove wake lock request.
   CancelWakeLock();
 
   // Should remove the blocker.
   EXPECT_FALSE(HasWakeLock());
 }
 
 }  // namespace device