Standardize usage of virtual/override/final in mojo/

mojo/spy/spy.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 "mojo/spy/spy.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 221 matching lines @@
   explicit SpyInterceptor(
       scoped_refptr<mojo::SpyServerImpl> spy_server,
       const scoped_refptr<base::MessageLoopProxy>& control_loop_proxy,
       mojo::Spy::WebSocketDelegate* websocket_delegate)
       : spy_server_(spy_server),
         proxy_(base::MessageLoopProxy::current()),
         control_loop_proxy_(control_loop_proxy),
         websocket_delegate_(websocket_delegate) {}
 
  private:
-  virtual mojo::ServiceProviderPtr OnConnectToClient(
-    const GURL& url, mojo::ServiceProviderPtr real_client) override {
+  mojo::ServiceProviderPtr OnConnectToClient(
+      const GURL& url,
+      mojo::ServiceProviderPtr real_client) override {
       if (!MustIntercept(url))
         return real_client.Pass();
 
       // You can get an invalid handle if the app (or service) is
       // created by unconventional means, for example the command line.
       if (!real_client)
         return real_client.Pass();
 
       mojo::ScopedMessagePipeHandle faux_client;
       mojo::ScopedMessagePipeHandle interceptor;
@@ skipping 86 matching lines @@
       base::Bind(&WebSocketDelegate::Start,
                  base::Unretained(websocket_delegate_),
                  spy_options_->websocket_port,
                  base::Passed(spy_server_->ServerPipe())));
   // Start intercepting mojo services.
   application_manager_->SetInterceptor(new SpyInterceptor(
       spy_server_, control_thread_->message_loop_proxy(), websocket_delegate_));
 }
 
 }  // namespace mojo