Update {virtual,override} to follow C++11 style in chrome.

chrome/browser/ui/webui/profiler_ui.cc

 // Copyright (c) 2012 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/ui/webui/profiler_ui.h"
 
 #include <string>
 
 // When testing the javacript code, it is cumbersome to have to keep
 // re-building the resouces package and reloading the browser. To solve
@@ skipping 35 matching lines @@
 
 #ifdef USE_SOURCE_FILES_DIRECTLY
 
 class ProfilerWebUIDataSource : public content::URLDataSource {
  public:
   ProfilerWebUIDataSource() {
   }
 
  protected:
   // content::URLDataSource implementation.
-  virtual std::string GetSource() override {
+  std::string GetSource() override {
     return chrome::kChromeUIProfilerHost;
   }
 
-  virtual std::string GetMimeType(const std::string& path) const override {
+  std::string GetMimeType(const std::string& path) const override {
     if (EndsWith(path, ".js", false))
       return "application/javascript";
     return "text/html";
   }
 
-  virtual void StartDataRequest(
+  void StartDataRequest(
       const std::string& path,
       bool is_incognito,
       const content::URLDataSource::GotDataCallback& callback) override {
     base::FilePath base_path;
     PathService::Get(base::DIR_SOURCE_ROOT, &base_path);
     base_path = base_path.AppendASCII("chrome");
     base_path = base_path.AppendASCII("browser");
     base_path = base_path.AppendASCII("resources");
     base_path = base_path.AppendASCII("profiler");
 
@@ skipping 94 matching lines @@
     base::TimeDelta phase_finish,
     const metrics::ProfilerEvents& past_events) {
   // Serialize the data to JSON.
   base::DictionaryValue json_data;
   task_profiler::TaskProfilerDataSerializer::ToValue(
       process_data_phase, process_id, process_type, &json_data);
 
   // Send the data to the renderer.
   web_ui()->CallJavascriptFunction("g_browserBridge.receivedData", json_data);
 }