Automated IWYU fix for TaskRunner includes.

extensions/browser/api/power/power_api_unittest.cc

 // Copyright 2014 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 "extensions/browser/api/power/power_api.h"
 
 #include <deque>
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
+#include "base/single_thread_task_runner.h"
 #include "device/power_save_blocker/power_save_blocker.h"
 #include "extensions/browser/api_test_utils.h"
 #include "extensions/browser/api_unittest.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/test_util.h"
 
 namespace extensions {
 
 namespace {
 
@@ skipping 253 matching lines @@
   EXPECT_EQ(NONE, manager_->PopFirstRequest());
 
   // Make the first extension block display-sleep again.
   ASSERT_TRUE(CallFunction(REQUEST, kDisplayArgs, extension()));
   EXPECT_EQ(BLOCK_DISPLAY_SLEEP, manager_->PopFirstRequest());
   EXPECT_EQ(UNBLOCK_APP_SUSPENSION, manager_->PopFirstRequest());
   EXPECT_EQ(NONE, manager_->PopFirstRequest());
 }
 
 }  // namespace extensions