Standardize usage of virtual/override/final in content/browser/

content/browser/device_sensors/device_inertial_sensor_browsertest.cc

Index: content/browser/device_sensors/device_inertial_sensor_browsertest.cc
diff --git a/content/browser/device_sensors/device_inertial_sensor_browsertest.cc b/content/browser/device_sensors/device_inertial_sensor_browsertest.cc
index 632722e6eeb92939fa4a4657c5ffb8588d575e24..3380d8a2e74ab43ff229f4115e4676f76b525219 100644
--- a/content/browser/device_sensors/device_inertial_sensor_browsertest.cc
+++ b/content/browser/device_sensors/device_inertial_sensor_browsertest.cc
@@ -34,9 +34,9 @@ class FakeDataFetcher : public DataFetcherSharedMemory {
         started_light_(false, false),
         stopped_light_(false, false),
         sensor_data_available_(true) {}
-  virtual ~FakeDataFetcher() { }
+  ~FakeDataFetcher() override {}
 
-  virtual bool Start(ConsumerType consumer_type, void* buffer) override {
+  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 {
+  bool Stop(ConsumerType consumer_type) override {
     switch (consumer_type) {
       case CONSUMER_TYPE_MOTION:
         stopped_motion_.Signal();
@@ -94,13 +94,11 @@ class FakeDataFetcher : public DataFetcherSharedMemory {
     return true;
   }
 
-  virtual void Fetch(unsigned consumer_bitmask) override {
+  void Fetch(unsigned consumer_bitmask) override {
     FAIL() << "fetch should not be called";
   }
 
-  virtual FetcherType GetType() const override {
-    return FETCHER_TYPE_DEFAULT;
-  }
+  FetcherType GetType() const override { return FETCHER_TYPE_DEFAULT; }
 
   void SetSensorDataAvailable(bool available) {
     sensor_data_available_ = available;
@@ -184,7 +182,7 @@ class DeviceInertialSensorBrowserTest : public ContentBrowserTest  {
         io_loop_finished_event_(false, false) {
   }
 
-  virtual void SetUpOnMainThread() override {
+  void SetUpOnMainThread() override {
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         base::Bind(&DeviceInertialSensorBrowserTest::SetUpOnIOThread, this));