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

chrome/browser/android/logo_bridge.cc

 // 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.
 
 #include "chrome/browser/android/logo_bridge.h"
 
 #include <jni.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
@@ skipping 35 matching lines @@
 
 class LogoObserverAndroid : public search_provider_logos::LogoObserver {
  public:
   LogoObserverAndroid(base::WeakPtr<LogoBridge> logo_bridge,
                       JNIEnv* env,
                       jobject j_logo_observer)
       : logo_bridge_(logo_bridge) {
     j_logo_observer_.Reset(env, j_logo_observer);
   }
 
-  virtual ~LogoObserverAndroid() {}
+  ~LogoObserverAndroid() override {}
 
   // seach_provider_logos::LogoObserver:
-  virtual void OnLogoAvailable(const search_provider_logos::Logo* logo,
-                               bool from_cache) override {
+  void OnLogoAvailable(const search_provider_logos::Logo* logo,
+                       bool from_cache) override {
     if (!logo_bridge_)
       return;
 
     JNIEnv* env = base::android::AttachCurrentThread();
     ScopedJavaLocalRef<jobject> j_logo = ConvertLogoToJavaObject(env, logo);
     Java_LogoObserver_onLogoAvailable(
         env, j_logo_observer_.obj(), j_logo.obj(), from_cache);
   }
 
-  virtual void OnObserverRemoved() override {
-    delete this;
-  }
+  void OnObserverRemoved() override { delete this; }
 
  private:
   // The associated LogoBridge. We won't call back to Java if the LogoBridge has
   // been destroyed.
   base::WeakPtr<LogoBridge> logo_bridge_;
 
   base::android::ScopedJavaGlobalRef<jobject> j_logo_observer_;
 };
 
 }  // namespace
@@ skipping 24 matching lines @@
   // |observer| is deleted in LogoObserverAndroid::OnObserverRemoved().
   LogoObserverAndroid* observer = new LogoObserverAndroid(
       weak_ptr_factory_.GetWeakPtr(), env, j_logo_observer);
   logo_service_->GetLogo(observer);
 }
 
 // static
 bool RegisterLogoBridge(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }