Update {virtual,override,final} for chrome/ to follow C++11 style.

chrome/browser/apps/app_shim/app_shim_host_mac_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 "chrome/browser/apps/app_shim/app_shim_host_mac.h"
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 93 matching lines @@
   void OnShimQuit(Host* host) override { ++quit_count_; }
 
   apps::AppShimLaunchResult launch_result_;
   int launch_count_;
   int launch_now_count_;
   int close_count_;
   int focus_count_;
   int quit_count_;
 
  private:
-  virtual void SetUp() override {
+  void SetUp() override {
     testing::Test::SetUp();
     host_.reset(new TestingAppShimHost());
   }
 
   scoped_ptr<TestingAppShimHost> host_;
 
   DISALLOW_COPY_AND_ASSIGN(AppShimHostTest);
 };
 
 
@@ skipping 41 matching lines @@
   apps::AppShimHandler::RemoveHandler(kTestAppId);
 }
 
 TEST_F(AppShimHostTest, TestFailLaunch) {
   apps::AppShimHandler::RegisterHandler(kTestAppId, this);
   launch_result_ = apps::APP_SHIM_LAUNCH_APP_NOT_FOUND;
   LaunchApp(apps::APP_SHIM_LAUNCH_NORMAL);
   EXPECT_EQ(apps::APP_SHIM_LAUNCH_APP_NOT_FOUND, GetLaunchResult());
   apps::AppShimHandler::RemoveHandler(kTestAppId);
 }