[Part 1 of 6] Move MockWebContentsTaskManager into its own file.

chrome/browser/task_management/mock_web_contents_task_manager.cc

Index: chrome/browser/task_management/mock_web_contents_task_manager.cc
diff --git a/chrome/browser/task_management/task_management_browsertest_util.cc b/chrome/browser/task_management/mock_web_contents_task_manager.cc
similarity index 80%
rename from chrome/browser/task_management/task_management_browsertest_util.cc
rename to chrome/browser/task_management/mock_web_contents_task_manager.cc
index 96d67297eb35a57e7a708b1c09581d55364a1a85..b0549db8c772239b79b6512dedd09d02b24afdb9 100644
--- a/chrome/browser/task_management/task_management_browsertest_util.cc
+++ b/chrome/browser/task_management/mock_web_contents_task_manager.cc
@@ -1,8 +1,8 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
+// Copyright 2016 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 "chrome/browser/task_management/task_management_browsertest_util.h"
+#include "chrome/browser/task_management/mock_web_contents_task_manager.h"
 
 #include "base/stl_util.h"
 #include "build/build_config.h"
@@ -13,11 +13,9 @@
 
 namespace task_management {
 
-MockWebContentsTaskManager::MockWebContentsTaskManager() {
-}
+MockWebContentsTaskManager::MockWebContentsTaskManager() {}
 
-MockWebContentsTaskManager::~MockWebContentsTaskManager() {
-}
+MockWebContentsTaskManager::~MockWebContentsTaskManager() {}
 
 void MockWebContentsTaskManager::TaskAdded(Task* task) {
   DCHECK(task);