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

chrome/browser/android/tab_android.h

 // 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.
 
 #ifndef CHROME_BROWSER_ANDROID_TAB_ANDROID_H_
 #define CHROME_BROWSER_ANDROID_TAB_ANDROID_H_
 
 #include <jni.h>
 
 #include "base/android/jni_weak_ref.h"
@@ skipping 53 matching lines @@
   static TabAndroid* FromWebContents(content::WebContents* web_contents);
 
   // Returns the native TabAndroid stored in the Java Tab represented by
   // |obj|.
   static TabAndroid* GetNativeTab(JNIEnv* env, jobject obj);
 
   // Function to attach helpers to the contentView.
   static void AttachTabHelpers(content::WebContents* web_contents);
 
   TabAndroid(JNIEnv* env, jobject obj);
-  virtual ~TabAndroid();
+  ~TabAndroid() override;
 
   base::android::ScopedJavaLocalRef<jobject> GetJavaObject();
 
   // Return the WebContents, if any, currently owned by this TabAndroid.
   content::WebContents* web_contents() const { return web_contents_.get(); }
 
   // Return specific id information regarding this TabAndroid.
   const SessionID& session_id() const { return session_tab_id_; }
   int GetAndroidId() const;
   int GetSyncId() const;
@@ skipping 19 matching lines @@
   virtual void HandlePopupNavigation(chrome::NavigateParams* params);
 
   bool HasPrerenderedUrl(GURL gurl);
 
   void MakeLoadURLParams(
       chrome::NavigateParams* params,
       content::NavigationController::LoadURLParams* load_url_params);
 
   // CoreTabHelperDelegate ----------------------------------------------------
 
-  virtual void SwapTabContents(content::WebContents* old_contents,
-                               content::WebContents* new_contents,
-                               bool did_start_load,
-                               bool did_finish_load) override;
+  void SwapTabContents(content::WebContents* old_contents,
+                       content::WebContents* new_contents,
+                       bool did_start_load,
+                       bool did_finish_load) override;
 
   // Overridden from InstantServiceObserver:
   void DefaultSearchProviderChanged() override;
 
   // Overridden from SearchTabHelperDelegate:
-  virtual void OnWebContentsInstantSupportDisabled(
+  void OnWebContentsInstantSupportDisabled(
       const content::WebContents* web_contents) override;
 
   // NotificationObserver -----------------------------------------------------
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) override;
+  void Observe(int type,
+               const content::NotificationSource& source,
+               const content::NotificationDetails& details) override;
 
   // FaviconTabHelperObserver -----------------------------------------------
-  virtual void OnFaviconAvailable(const gfx::Image& image) override;
+  void OnFaviconAvailable(const gfx::Image& image) override;
 
   // Methods called from Java via JNI -----------------------------------------
 
   virtual void Destroy(JNIEnv* env, jobject obj);
   virtual void InitWebContents(JNIEnv* env,
                                jobject obj,
                                jboolean incognito,
                                jobject jcontent_view_core,
                                jobject jweb_contents_delegate,
                                jobject jcontext_menu_populator);
@@ skipping 62 matching lines @@
   scoped_ptr<content::WebContents> web_contents_;
   scoped_ptr<chrome::android::ChromeWebContentsDelegateAndroid>
       web_contents_delegate_;
 
   scoped_ptr<browser_sync::SyncedTabDelegateAndroid> synced_tab_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(TabAndroid);
 };
 
 #endif  // CHROME_BROWSER_ANDROID_TAB_ANDROID_H_