Update {virtual,override,final} to follow C++11 style chrome/browser/ui/webui/chromeos.

chrome/browser/ui/webui/chromeos/proxy_settings_ui.cc

Index: chrome/browser/ui/webui/chromeos/proxy_settings_ui.cc
diff --git a/chrome/browser/ui/webui/chromeos/proxy_settings_ui.cc b/chrome/browser/ui/webui/chromeos/proxy_settings_ui.cc
index 4e2b6f8fdf4402648c4ac9677d3270fdebfcb910..d462b464dc1b75a2f1db8032f471d16c3c8d004f 100644
--- a/chrome/browser/ui/webui/chromeos/proxy_settings_ui.cc
+++ b/chrome/browser/ui/webui/chromeos/proxy_settings_ui.cc
@@ -33,21 +33,19 @@ class ProxySettingsHTMLSource : public content::URLDataSource {
   explicit ProxySettingsHTMLSource(base::DictionaryValue* localized_strings);
 
   // content::URLDataSource implementation.
-  virtual std::string GetSource() const override;
-  virtual void StartDataRequest(
+  std::string GetSource() const override;
+  void StartDataRequest(
       const std::string& path,
       int render_process_id,
       int render_frame_id,
       const content::URLDataSource::GotDataCallback& callback) override;
-  virtual std::string GetMimeType(const std::string&) const override {
+  std::string GetMimeType(const std::string&) const override {
     return "text/html";
   }
-  virtual bool ShouldAddContentSecurityPolicy() const override {
-    return false;
-  }
+  bool ShouldAddContentSecurityPolicy() const override { return false; }
 
  protected:
-  virtual ~ProxySettingsHTMLSource() {}
+  ~ProxySettingsHTMLSource() override {}
 
  private:
   scoped_ptr<base::DictionaryValue> localized_strings_;