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

chrome/browser/android/omnibox/autocomplete_controller_android.h

 // 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.
 
 #ifndef CHROME_BROWSER_ANDROID_OMNIBOX_AUTOCOMPLETE_CONTROLLER_ANDROID_H_
 #define CHROME_BROWSER_ANDROID_OMNIBOX_AUTOCOMPLETE_CONTROLLER_ANDROID_H_
 
 #include <string>
 
 #include "base/android/jni_weak_ref.h"
@@ skipping 53 matching lines @@
                             jobject j_web_contents);
   void DeleteSuggestion(JNIEnv* env, jobject obj, int selected_index);
   base::android::ScopedJavaLocalRef<jstring>
       UpdateMatchDestinationURLWithQueryFormulationTime(
           JNIEnv* env,
           jobject obj,
           jint selected_index,
           jlong elapsed_time_since_input_change);
 
   // KeyedService:
-  virtual void Shutdown() override;
+  void Shutdown() override;
 
   class Factory : public BrowserContextKeyedServiceFactory {
    public:
     static AutocompleteControllerAndroid* GetForProfile(Profile* profile,
                                              JNIEnv* env,
                                              jobject obj);
 
     static Factory* GetInstance();
 
    protected:
-    virtual content::BrowserContext* GetBrowserContextToUse(
+    content::BrowserContext* GetBrowserContextToUse(
         content::BrowserContext* context) const override;
 
    private:
     friend struct DefaultSingletonTraits<Factory>;
 
     Factory();
-    virtual ~Factory();
+    ~Factory() override;
 
     // BrowserContextKeyedServiceFactory
-    virtual KeyedService* BuildServiceInstanceFor(
+    KeyedService* BuildServiceInstanceFor(
         content::BrowserContext* profile) const override;
   };
 
  private:
-  virtual ~AutocompleteControllerAndroid();
+  ~AutocompleteControllerAndroid() override;
   void InitJNI(JNIEnv* env, jobject obj);
 
   // AutocompleteControllerDelegate implementation.
-  virtual void OnResultChanged(bool default_match_changed) override;
+  void OnResultChanged(bool default_match_changed) override;
 
   // Notifies the Java AutocompleteController that suggestions were received
   // based on the text the user typed in last.
   void NotifySuggestionsReceived(
       const AutocompleteResult& autocomplete_result);
 
   // Classifies the type of page we are on.
   metrics::OmniboxEventProto::PageClassification ClassifyPage(
       const GURL& gurl,
       bool is_query_in_omnibox,
@@ skipping 28 matching lines @@
   JavaObjectWeakGlobalRef weak_java_autocomplete_controller_android_;
   Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(AutocompleteControllerAndroid);
 };
 
 // Registers the LocationBar native method.
 bool RegisterAutocompleteControllerAndroid(JNIEnv* env);
 
 #endif  // CHROME_BROWSER_ANDROID_OMNIBOX_AUTOCOMPLETE_CONTROLLER_ANDROID_H_