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

chrome/browser/ui/android/infobars/infobar_container_android.h

 // Copyright 2013 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_UI_ANDROID_INFOBARS_INFOBAR_CONTAINER_ANDROID_H_
 #define CHROME_BROWSER_UI_ANDROID_INFOBARS_INFOBAR_CONTAINER_ANDROID_H_
 
 #include <map>
 #include <string>
 
@@ skipping 13 matching lines @@
  public:
   InfoBarContainerAndroid(JNIEnv* env,
                           jobject infobar_container);
   void Destroy(JNIEnv* env, jobject obj);
 
   JavaObjectWeakGlobalRef java_container() const {
     return weak_java_infobar_container_;
   }
 
  private:
-  virtual ~InfoBarContainerAndroid() override;
+  ~InfoBarContainerAndroid() override;
 
   // InfobarContainer:
-  virtual void PlatformSpecificAddInfoBar(infobars::InfoBar* infobar,
-                                          size_t position) override;
-  virtual void PlatformSpecificRemoveInfoBar(infobars::InfoBar* infobar)
-      override;
-  virtual void PlatformSpecificReplaceInfoBar(
-      infobars::InfoBar* old_infobar,
-      infobars::InfoBar* new_infobar) override;
+  void PlatformSpecificAddInfoBar(infobars::InfoBar* infobar,
+                                  size_t position) override;
+  void PlatformSpecificRemoveInfoBar(infobars::InfoBar* infobar) override;
+  void PlatformSpecificReplaceInfoBar(infobars::InfoBar* old_infobar,
+                                      infobars::InfoBar* new_infobar) override;
 
   // Create the Java equivalent of |android_bar| and add it to the java
   // container.
   void AttachJavaInfoBar(InfoBarAndroid* android_bar);
 
   // We're owned by the java infobar, need to use a weak ref so it can destroy
   // us.
   JavaObjectWeakGlobalRef weak_java_infobar_container_;
 
   DISALLOW_COPY_AND_ASSIGN(InfoBarContainerAndroid);
 };
 
 // Registers the InfoBarContainer's native methods through JNI.
 bool RegisterInfoBarContainer(JNIEnv* env);
 
 #endif  // CHROME_BROWSER_UI_ANDROID_INFOBARS_INFOBAR_CONTAINER_ANDROID_H_