diff --git a/content/browser/device_sensors/data_fetcher_shared_memory.h b/content/browser/device_sensors/data_fetcher_shared_memory.h
index bd5c8c425d84..4715cbbcdb14 100644
--- a/content/browser/device_sensors/data_fetcher_shared_memory.h
+++ b/content/browser/device_sensors/data_fetcher_shared_memory.h
@@ -30,8 +30,8 @@ class CONTENT_EXPORT DataFetcherSharedMemory
   virtual ~DataFetcherSharedMemory();
 
  private:
-  virtual bool Start(ConsumerType consumer_type, void* buffer) OVERRIDE;
-  virtual bool Stop(ConsumerType consumer_type) OVERRIDE;
+  virtual bool Start(ConsumerType consumer_type, void* buffer) override;
+  virtual bool Stop(ConsumerType consumer_type) override;
 
 #if !defined(OS_ANDROID)
   DeviceMotionHardwareBuffer* motion_buffer_;
@@ -39,8 +39,8 @@ class CONTENT_EXPORT DataFetcherSharedMemory
   DeviceLightHardwareBuffer* light_buffer_;
 #endif
 #if defined(OS_MACOSX)
-  virtual void Fetch(unsigned consumer_bitmask) OVERRIDE;
-  virtual FetcherType GetType() const OVERRIDE;
+  virtual void Fetch(unsigned consumer_bitmask) override;
+  virtual FetcherType GetType() const override;
 
   scoped_ptr<SuddenMotionSensor> sudden_motion_sensor_;
 #elif defined(OS_WIN)
@@ -48,7 +48,7 @@ class CONTENT_EXPORT DataFetcherSharedMemory
   class SensorEventSinkMotion;
   class SensorEventSinkOrientation;
 
-  virtual FetcherType GetType() const OVERRIDE;
+  virtual FetcherType GetType() const override;
 
   bool RegisterForSensor(REFSENSOR_TYPE_ID sensor_type, ISensor** sensor,
       scoped_refptr<SensorEventSink> event_sink);
diff --git a/content/browser/device_sensors/data_fetcher_shared_memory_base_unittest.cc b/content/browser/device_sensors/data_fetcher_shared_memory_base_unittest.cc
index 18f419fb26be..10586abedd39 100644
--- a/content/browser/device_sensors/data_fetcher_shared_memory_base_unittest.cc
+++ b/content/browser/device_sensors/data_fetcher_shared_memory_base_unittest.cc
@@ -157,7 +157,7 @@ class FakeNonPollingDataFetcher : public FakeDataFetcher {
   FakeNonPollingDataFetcher() { }
   virtual ~FakeNonPollingDataFetcher() { }
 
-  virtual bool Start(ConsumerType consumer_type, void* buffer) OVERRIDE {
+  virtual bool Start(ConsumerType consumer_type, void* buffer) override {
     Init(consumer_type, buffer);
     switch (consumer_type) {
       case CONSUMER_TYPE_MOTION:
@@ -178,7 +178,7 @@ class FakeNonPollingDataFetcher : public FakeDataFetcher {
     return true;
   }
 
-  virtual bool Stop(ConsumerType consumer_type) OVERRIDE {
+  virtual bool Stop(ConsumerType consumer_type) override {
     switch (consumer_type) {
       case CONSUMER_TYPE_MOTION:
         stop_motion_.Signal();
@@ -195,12 +195,12 @@ class FakeNonPollingDataFetcher : public FakeDataFetcher {
     return true;
   }
 
-  virtual void Fetch(unsigned consumer_bitmask) OVERRIDE {
+  virtual void Fetch(unsigned consumer_bitmask) override {
     FAIL() << "fetch should not be called, "
         << "because this is a non-polling fetcher";
   }
 
-  virtual FetcherType GetType() const OVERRIDE {
+  virtual FetcherType GetType() const override {
     return FakeDataFetcher::GetType();
   }
 
@@ -213,7 +213,7 @@ class FakePollingDataFetcher : public FakeDataFetcher {
   FakePollingDataFetcher() { }
   virtual ~FakePollingDataFetcher() { }
 
-  virtual bool Start(ConsumerType consumer_type, void* buffer) OVERRIDE {
+  virtual bool Start(ConsumerType consumer_type, void* buffer) override {
     EXPECT_TRUE(base::MessageLoop::current() == GetPollingMessageLoop());
 
     Init(consumer_type, buffer);
@@ -233,7 +233,7 @@ class FakePollingDataFetcher : public FakeDataFetcher {
     return true;
   }
 
-  virtual bool Stop(ConsumerType consumer_type) OVERRIDE {
+  virtual bool Stop(ConsumerType consumer_type) override {
     EXPECT_TRUE(base::MessageLoop::current() == GetPollingMessageLoop());
 
     switch (consumer_type) {
@@ -252,7 +252,7 @@ class FakePollingDataFetcher : public FakeDataFetcher {
     return true;
   }
 
-  virtual void Fetch(unsigned consumer_bitmask) OVERRIDE {
+  virtual void Fetch(unsigned consumer_bitmask) override {
     EXPECT_TRUE(base::MessageLoop::current() == GetPollingMessageLoop());
     EXPECT_TRUE(consumer_bitmask & CONSUMER_TYPE_ORIENTATION ||
                 consumer_bitmask & CONSUMER_TYPE_MOTION ||
@@ -266,7 +266,7 @@ class FakePollingDataFetcher : public FakeDataFetcher {
       UpdateLight();
   }
 
-  virtual FetcherType GetType() const OVERRIDE {
+  virtual FetcherType GetType() const override {
     return FETCHER_TYPE_POLLING_CALLBACK;
   }
 
@@ -279,7 +279,7 @@ class FakeZeroDelayPollingDataFetcher : public FakeDataFetcher {
   FakeZeroDelayPollingDataFetcher() { }
   virtual ~FakeZeroDelayPollingDataFetcher() { }
 
-  virtual bool Start(ConsumerType consumer_type, void* buffer) OVERRIDE {
+  virtual bool Start(ConsumerType consumer_type, void* buffer) override {
     EXPECT_TRUE(base::MessageLoop::current() == GetPollingMessageLoop());
 
     Init(consumer_type, buffer);
@@ -299,7 +299,7 @@ class FakeZeroDelayPollingDataFetcher : public FakeDataFetcher {
     return true;
   }
 
-  virtual bool Stop(ConsumerType consumer_type) OVERRIDE {
+  virtual bool Stop(ConsumerType consumer_type) override {
     EXPECT_TRUE(base::MessageLoop::current() == GetPollingMessageLoop());
 
     switch (consumer_type) {
@@ -318,11 +318,11 @@ class FakeZeroDelayPollingDataFetcher : public FakeDataFetcher {
     return true;
   }
 
-  virtual void Fetch(unsigned consumer_bitmask) OVERRIDE {
+  virtual void Fetch(unsigned consumer_bitmask) override {
     FAIL() << "fetch should not be called";
   }
 
-  virtual FetcherType GetType() const OVERRIDE {
+  virtual FetcherType GetType() const override {
     return FETCHER_TYPE_SEPARATE_THREAD;
   }
 
diff --git a/content/browser/device_sensors/data_fetcher_shared_memory_win.cc b/content/browser/device_sensors/data_fetcher_shared_memory_win.cc
index 96f4a14215e1..c537e0325518 100644
--- a/content/browser/device_sensors/data_fetcher_shared_memory_win.cc
+++ b/content/browser/device_sensors/data_fetcher_shared_memory_win.cc
@@ -30,15 +30,15 @@ class DataFetcherSharedMemory::SensorEventSink
   virtual ~SensorEventSink() {}
 
   // IUnknown interface
-  virtual ULONG STDMETHODCALLTYPE AddRef() OVERRIDE {
+  virtual ULONG STDMETHODCALLTYPE AddRef() override {
     return IUnknownImpl::AddRef();
   }
 
-  virtual ULONG STDMETHODCALLTYPE Release() OVERRIDE {
+  virtual ULONG STDMETHODCALLTYPE Release() override {
     return IUnknownImpl::Release();
   }
 
-  virtual STDMETHODIMP QueryInterface(REFIID riid, void** ppv) OVERRIDE {
+  virtual STDMETHODIMP QueryInterface(REFIID riid, void** ppv) override {
     if (riid == __uuidof(ISensorEvents)) {
       *ppv = static_cast<ISensorEvents*>(this);
       AddRef();
@@ -50,20 +50,20 @@ class DataFetcherSharedMemory::SensorEventSink
   // ISensorEvents interface
   STDMETHODIMP OnEvent(ISensor* sensor,
                        REFGUID event_id,
-                       IPortableDeviceValues* event_data) OVERRIDE {
+                       IPortableDeviceValues* event_data) override {
     return S_OK;
   }
 
-  STDMETHODIMP OnLeave(REFSENSOR_ID sensor_id) OVERRIDE {
+  STDMETHODIMP OnLeave(REFSENSOR_ID sensor_id) override {
     return S_OK;
   }
 
-  STDMETHODIMP OnStateChanged(ISensor* sensor, SensorState state) OVERRIDE {
+  STDMETHODIMP OnStateChanged(ISensor* sensor, SensorState state) override {
     return S_OK;
   }
 
   STDMETHODIMP OnDataUpdated(ISensor* sensor,
-                             ISensorDataReport* new_data) OVERRIDE {
+                             ISensorDataReport* new_data) override {
     if (NULL == new_data || NULL == sensor)
       return E_INVALIDARG;
     return UpdateSharedMemoryBuffer(sensor, new_data) ? S_OK : E_FAIL;
@@ -102,7 +102,7 @@ class DataFetcherSharedMemory::SensorEventSinkOrientation
 
 protected:
   virtual bool UpdateSharedMemoryBuffer(
-      ISensor* sensor, ISensorDataReport* new_data) OVERRIDE {
+      ISensor* sensor, ISensorDataReport* new_data) override {
     double alpha, beta, gamma;
     bool has_alpha, has_beta, has_gamma;
 
@@ -145,7 +145,7 @@ class DataFetcherSharedMemory::SensorEventSinkMotion
 
  protected:
   virtual bool UpdateSharedMemoryBuffer(
-      ISensor* sensor, ISensorDataReport* new_data) OVERRIDE {
+      ISensor* sensor, ISensorDataReport* new_data) override {
 
     SENSOR_TYPE_ID sensor_type = GUID_NULL;
     if (!SUCCEEDED(sensor->GetType(&sensor_type)))
diff --git a/content/browser/device_sensors/device_inertial_sensor_browsertest.cc b/content/browser/device_sensors/device_inertial_sensor_browsertest.cc
index 4fc83c2583c2..6ef388b7b18c 100644
--- a/content/browser/device_sensors/device_inertial_sensor_browsertest.cc
+++ b/content/browser/device_sensors/device_inertial_sensor_browsertest.cc
@@ -36,7 +36,7 @@ class FakeDataFetcher : public DataFetcherSharedMemory {
         sensor_data_available_(true) {}
   virtual ~FakeDataFetcher() { }
 
-  virtual bool Start(ConsumerType consumer_type, void* buffer) OVERRIDE {
+  virtual bool Start(ConsumerType consumer_type, void* buffer) override {
     EXPECT_TRUE(buffer);
 
     switch (consumer_type) {
@@ -77,7 +77,7 @@ class FakeDataFetcher : public DataFetcherSharedMemory {
     return true;
   }
 
-  virtual bool Stop(ConsumerType consumer_type) OVERRIDE {
+  virtual bool Stop(ConsumerType consumer_type) override {
     switch (consumer_type) {
       case CONSUMER_TYPE_MOTION:
         stopped_motion_.Signal();
@@ -94,11 +94,11 @@ class FakeDataFetcher : public DataFetcherSharedMemory {
     return true;
   }
 
-  virtual void Fetch(unsigned consumer_bitmask) OVERRIDE {
+  virtual void Fetch(unsigned consumer_bitmask) override {
     FAIL() << "fetch should not be called";
   }
 
-  virtual FetcherType GetType() const OVERRIDE {
+  virtual FetcherType GetType() const override {
     return FETCHER_TYPE_DEFAULT;
   }
 
@@ -184,7 +184,7 @@ class DeviceInertialSensorBrowserTest : public ContentBrowserTest  {
         io_loop_finished_event_(false, false) {
   }
 
-  virtual void SetUpOnMainThread() OVERRIDE {
+  virtual void SetUpOnMainThread() override {
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         base::Bind(&DeviceInertialSensorBrowserTest::SetUpOnIOThread, this));
diff --git a/content/browser/device_sensors/device_light_message_filter.h b/content/browser/device_sensors/device_light_message_filter.h
index 27661593768a..0635f6e18e47 100644
--- a/content/browser/device_sensors/device_light_message_filter.h
+++ b/content/browser/device_sensors/device_light_message_filter.h
@@ -14,7 +14,7 @@ class DeviceLightMessageFilter : public BrowserMessageFilter {
   DeviceLightMessageFilter();
 
   // BrowserMessageFilter implementation.
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+  virtual bool OnMessageReceived(const IPC::Message& message) override;
 
  private:
   virtual ~DeviceLightMessageFilter();
diff --git a/content/browser/device_sensors/device_motion_message_filter.h b/content/browser/device_sensors/device_motion_message_filter.h
index cd4859472d57..4e16e5cfaeb6 100644
--- a/content/browser/device_sensors/device_motion_message_filter.h
+++ b/content/browser/device_sensors/device_motion_message_filter.h
@@ -14,7 +14,7 @@ class DeviceMotionMessageFilter : public BrowserMessageFilter {
   DeviceMotionMessageFilter();
 
   // BrowserMessageFilter implementation.
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+  virtual bool OnMessageReceived(const IPC::Message& message) override;
 
  private:
   virtual ~DeviceMotionMessageFilter();
diff --git a/content/browser/device_sensors/device_orientation_message_filter.h b/content/browser/device_sensors/device_orientation_message_filter.h
index 56893c83a163..73d7f426c6a5 100644
--- a/content/browser/device_sensors/device_orientation_message_filter.h
+++ b/content/browser/device_sensors/device_orientation_message_filter.h
@@ -14,7 +14,7 @@ class DeviceOrientationMessageFilter : public BrowserMessageFilter {
   DeviceOrientationMessageFilter();
 
   // BrowserMessageFilter implementation.
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+  virtual bool OnMessageReceived(const IPC::Message& message) override;
 
  private:
   virtual ~DeviceOrientationMessageFilter();
diff --git a/content/browser/device_sensors/sensor_manager_android_unittest.cc b/content/browser/device_sensors/sensor_manager_android_unittest.cc
index 096f3ecc4ae3..b5f0c5fb9335 100644
--- a/content/browser/device_sensors/sensor_manager_android_unittest.cc
+++ b/content/browser/device_sensors/sensor_manager_android_unittest.cc
@@ -19,7 +19,7 @@ class FakeSensorManagerAndroid : public SensorManagerAndroid {
   FakeSensorManagerAndroid() { }
   virtual ~FakeSensorManagerAndroid() { }
 
-  virtual int GetNumberActiveDeviceMotionSensors() OVERRIDE {
+  virtual int GetNumberActiveDeviceMotionSensors() override {
     return number_active_sensors_;
   }
 
@@ -28,11 +28,11 @@ class FakeSensorManagerAndroid : public SensorManagerAndroid {
   }
 
  protected:
-  virtual bool Start(EventType event_type) OVERRIDE {
+  virtual bool Start(EventType event_type) override {
     return true;
   }
 
-  virtual void Stop(EventType event_type) OVERRIDE {
+  virtual void Stop(EventType event_type) override {
   }
 
  private: