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

android_webview/native/aw_web_resource_response_impl.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 ANDROID_WEBVIEW_NATIVE_INTERCEPTED_REQUEST_DATA_IMPL_H_
 #define ANDROID_WEBVIEW_NATIVE_INTERCEPTED_REQUEST_DATA_IMPL_H_
 
 #include "android_webview/browser/aw_web_resource_response.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 
 namespace net {
 class HttpResponseHeaders;
 }
 
 namespace android_webview {
 
 class InputStream;
 
 class AwWebResourceResponseImpl : public AwWebResourceResponse {
  public:
   // It is expected that |obj| is an instance of the Java-side
   // org.chromium.android_webview.AwWebResourceResponse class.
   AwWebResourceResponseImpl(const base::android::JavaRef<jobject>& obj);
-  virtual ~AwWebResourceResponseImpl();
+  ~AwWebResourceResponseImpl() override;
 
-  virtual scoped_ptr<InputStream> GetInputStream(JNIEnv* env) const override;
-  virtual bool GetMimeType(JNIEnv* env, std::string* mime_type) const override;
-  virtual bool GetCharset(JNIEnv* env, std::string* charset) const override;
-  virtual bool GetStatusInfo(JNIEnv* env,
-                             int* status_code,
-                             std::string* reason_phrase) const override;
-  virtual bool GetResponseHeaders(
-      JNIEnv* env,
-      net::HttpResponseHeaders* headers) const override;
+  scoped_ptr<InputStream> GetInputStream(JNIEnv* env) const override;
+  bool GetMimeType(JNIEnv* env, std::string* mime_type) const override;
+  bool GetCharset(JNIEnv* env, std::string* charset) const override;
+  bool GetStatusInfo(JNIEnv* env,
+                     int* status_code,
+                     std::string* reason_phrase) const override;
+  bool GetResponseHeaders(JNIEnv* env,
+                          net::HttpResponseHeaders* headers) const override;
 
  private:
   base::android::ScopedJavaGlobalRef<jobject> java_object_;
 
   DISALLOW_COPY_AND_ASSIGN(AwWebResourceResponseImpl);
 };
 
 bool RegisterAwWebResourceResponse(JNIEnv* env);
 
 } // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_NATIVE_INTERCEPTED_REQUEST_DATA_IMPL_H_