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

android_webview/native/aw_quota_manager_bridge_impl.h

 // Copyright (c) 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 ANDROID_WEBVIEW_NATIVE_AW_QUOTA_MANAGER_BRIDGE_IMPL_H_
 #define ANDROID_WEBVIEW_NATIVE_AW_QUOTA_MANAGER_BRIDGE_IMPL_H_
 
 #include <jni.h>
 #include <string>
 #include <vector>
@@ skipping 38 matching lines @@
 
   typedef base::Callback<
       void(const std::vector<std::string>& /* origin */,
            const std::vector<int64>& /* usage */,
            const std::vector<int64>& /* quota */)> GetOriginsCallback;
   typedef base::Callback<void(int64 /* usage */,
                               int64 /* quota */)> QuotaUsageCallback;
 
  private:
   explicit AwQuotaManagerBridgeImpl(AwBrowserContext* browser_context);
-  virtual ~AwQuotaManagerBridgeImpl();
+  ~AwQuotaManagerBridgeImpl() override;
 
   content::StoragePartition* GetStoragePartition() const;
 
   storage::QuotaManager* GetQuotaManager() const;
 
   void DeleteAllDataOnUiThread();
   void DeleteOriginOnUiThread(const base::string16& origin);
   void GetOriginsOnUiThread(jint callback_id);
   void GetUsageAndQuotaForOriginOnUiThread(const base::string16& origin,
                                            jint callback_id,
@@ skipping 13 matching lines @@
   base::WeakPtrFactory<AwQuotaManagerBridgeImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AwQuotaManagerBridgeImpl);
 };
 
 bool RegisterAwQuotaManagerBridge(JNIEnv* env);
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_NATIVE_AW_QUOTA_MANAGER_BRIDGE_IMPL_H_