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

chrome/browser/apps/app_shim/app_shim_host_manager_browsertest_mac.mm

 // 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_manager_mac.h"
 
 #include <unistd.h>
 
 #include "base/files/file_path.h"
 #include "base/logging.h"
@@ skipping 69 matching lines @@
   // Client should not get any channel errors for the current set of tests.
   PLOG(FATAL) << "ChannelError";
 }
 
 // Browser Test for AppShimHostManager to test IPC interactions across the
 // UNIX domain socket.
 class AppShimHostManagerBrowserTest : public InProcessBrowserTest,
                                       public apps::AppShimHandler {
  public:
   AppShimHostManagerBrowserTest();
-  virtual ~AppShimHostManagerBrowserTest();
+  ~AppShimHostManagerBrowserTest() override;
 
  protected:
   // Wait for OnShimLaunch, then send a quit, and wait for the response. Used to
   // test launch behavior.
   void RunAndExitGracefully();
 
   // InProcessBrowserTest overrides:
   void SetUpOnMainThread() override;
   void TearDownOnMainThread() override;
 
@@ skipping 177 matching lines @@
   ASSERT_TRUE(base::ReadSymbolicLink(symlink_path_, &socket_path));
   EXPECT_EQ(app_mode::kAppShimSocketShortName, socket_path.BaseName().value());
 
   // Check that the RunningChromeVersion file is correctly written.
   base::FilePath version;
   EXPECT_TRUE(base::ReadSymbolicLink(version_path_, &version));
   EXPECT_EQ(chrome::VersionInfo().Version(), version.value());
 }
 
 }  // namespace