cros: Add missing "virtual" and OVERRIDE to overridden virtual methods of BrightnessLibrary.

chrome/browser/chromeos/cros/brightness_library.cc

 // Copyright (c) 2011 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/chromeos/cros/brightness_library.h"
 
 #include "base/basictypes.h"
+#include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/observer_list.h"
 #include "chrome/browser/chromeos/cros/cros_library.h"
 #include "content/browser/browser_thread.h"
 #include "third_party/cros/chromeos_brightness.h"
 
 namespace chromeos {
 
 class BrightnessLibraryImpl : public BrightnessLibrary {
  public:
   BrightnessLibraryImpl() : brightness_connection_(NULL) {}
 
-  ~BrightnessLibraryImpl() {
+  virtual ~BrightnessLibraryImpl() {
     if (brightness_connection_) {
       chromeos::DisconnectBrightness(brightness_connection_);
       brightness_connection_ = NULL;
     }
   }
 
-  void Init() {
+  // Begin BrightnessLibrary implementation.
+  virtual void Init() OVERRIDE {
     if (CrosLibrary::Get()->EnsureLoaded()) {
       CHECK(!brightness_connection_) << "Already intialized";
       brightness_connection_ =
           chromeos::MonitorBrightnessV2(&BrightnessChangedHandler, this);
     }
   }
 
-  void AddObserver(Observer* observer) {
+  virtual void AddObserver(Observer* observer) OVERRIDE {
     observers_.AddObserver(observer);
   }
 
-  void RemoveObserver(Observer* observer) {
+  virtual void RemoveObserver(Observer* observer) OVERRIDE {
     observers_.RemoveObserver(observer);
   }
 
-  void DecreaseScreenBrightness(bool allow_off) {
+  virtual void DecreaseScreenBrightness(bool allow_off) OVERRIDE {
     if (chromeos::DecreaseScreenBrightness)
       chromeos::DecreaseScreenBrightness(allow_off);
   }
 
-  void IncreaseScreenBrightness() {
+  virtual void IncreaseScreenBrightness() OVERRIDE {
     if (chromeos::IncreaseScreenBrightness)
       chromeos::IncreaseScreenBrightness();
   }
+  // End BrightnessLibrary implementation.
 
  private:
   static void BrightnessChangedHandler(void* object,
                                        int brightness_level,
                                        bool user_initiated) {
     BrightnessLibraryImpl* self = static_cast<BrightnessLibraryImpl*>(object);
     self->OnBrightnessChanged(brightness_level, user_initiated);
   }
 
   void OnBrightnessChanged(int brightness_level, bool user_initiated) {
@@ skipping 16 matching lines @@
   chromeos::BrightnessConnection brightness_connection_;
 
   ObserverList<Observer> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(BrightnessLibraryImpl);
 };
 
 class BrightnessLibraryStubImpl : public BrightnessLibrary {
  public:
   BrightnessLibraryStubImpl() {}
-  ~BrightnessLibraryStubImpl() {}
-  void Init() {}
-  void AddObserver(Observer* observer) {}
-  void RemoveObserver(Observer* observer) {}
-  void DecreaseScreenBrightness(bool allow_off) {}
-  void IncreaseScreenBrightness() {}
+  virtual ~BrightnessLibraryStubImpl() {}
+  virtual void Init() OVERRIDE {}
+  virtual void AddObserver(Observer* observer) OVERRIDE {}
+  virtual void RemoveObserver(Observer* observer) OVERRIDE {}
+  virtual void DecreaseScreenBrightness(bool allow_off) OVERRIDE {}
+  virtual void IncreaseScreenBrightness() OVERRIDE {}
 };
 
 // static
 BrightnessLibrary* BrightnessLibrary::GetImpl(bool stub) {
   BrightnessLibrary* impl;
   if (stub)
     impl = new BrightnessLibraryStubImpl();
   else
     impl = new BrightnessLibraryImpl();
   impl->Init();
   return impl;
 }
 
 }  // namespace chromeos
 
 // Needed for NewRunnableMethod() call above.
 DISABLE_RUNNABLE_METHOD_REFCOUNT(chromeos::BrightnessLibraryImpl);