replace OVERRIDE and FINAL with override and final in chrome/browser/[a-i]*

chrome/browser/extensions/api/messaging/native_message_host_chromeos.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/messaging/native_message_host.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 25 matching lines @@
     "chrome-extension://knldjmfmopnpolahpmmgbagdohdnhkik/"};
 
 class EchoHost : public NativeMessageHost {
  public:
   static scoped_ptr<NativeMessageHost> Create() {
     return scoped_ptr<NativeMessageHost>(new EchoHost());
   }
 
   EchoHost() : message_number_(0), client_(NULL) {}
 
-  virtual void Start(Client* client) OVERRIDE {
+  virtual void Start(Client* client) override {
     client_ = client;
   }
 
-  virtual void OnMessage(const std::string& request_string) OVERRIDE {
+  virtual void OnMessage(const std::string& request_string) override {
     scoped_ptr<base::Value> request_value(
         base::JSONReader::Read(request_string));
     scoped_ptr<base::DictionaryValue> request(
       static_cast<base::DictionaryValue*>(request_value.release()));
     if (request_string.find("stopHostTest") != std::string::npos) {
       client_->CloseChannel(kNativeHostExited);
     } else if (request_string.find("bigMessageTest") != std::string::npos) {
       client_->CloseChannel(kHostInputOuputError);
     } else {
       ProcessEcho(*request);
     }
   };
 
   virtual scoped_refptr<base::SingleThreadTaskRunner> task_runner()
-      const OVERRIDE {
+      const override {
     return base::MessageLoopProxy::current();
   };
 
  private:
   void ProcessEcho(const base::DictionaryValue& request) {
     scoped_ptr<base::DictionaryValue> response(new base::DictionaryValue());
     response->SetInteger("id", ++message_number_);
     response->Set("echo", request.DeepCopy());
     response->SetString("caller_url", kEchoHostOrigins[0]);
     std::string response_string;
@@ skipping 64 matching lines @@
       }
       *error = kForbiddenError;
       return nullptr;
     }
   }
   *error = kNotFoundError;
   return nullptr;
 }
 
 }  // namespace extensions