Standardize usage of virtual/override/final in cc/

cc/resources/tile_manager.cc

Index: cc/resources/tile_manager.cc
diff --git a/cc/resources/tile_manager.cc b/cc/resources/tile_manager.cc
index 7fa2e3ee07bc6ed4f4b1e7170288d1bf45a80800..cb9d766654eedaf78d36b313c1a226f35e71ee56 100644
--- a/cc/resources/tile_manager.cc
+++ b/cc/resources/tile_manager.cc
@@ -57,7 +57,7 @@ class RasterTaskImpl : public RasterTask {
         reply_(reply) {}
 
   // Overridden from Task:
-  virtual void RunOnWorkerThread() override {
+  void RunOnWorkerThread() override {
     TRACE_EVENT0("cc", "RasterizerTaskImpl::RunOnWorkerThread");
 
     DCHECK(picture_pile_.get());
@@ -73,20 +73,20 @@ class RasterTaskImpl : public RasterTask {
   }
 
   // Overridden from RasterizerTask:
-  virtual void ScheduleOnOriginThread(RasterizerTaskClient* client) override {
+  void ScheduleOnOriginThread(RasterizerTaskClient* client) override {
     DCHECK(!raster_buffer_);
     raster_buffer_ = client->AcquireBufferForRaster(resource());
   }
-  virtual void CompleteOnOriginThread(RasterizerTaskClient* client) override {
+  void CompleteOnOriginThread(RasterizerTaskClient* client) override {
     client->ReleaseBufferForRaster(raster_buffer_.Pass());
   }
-  virtual void RunReplyOnOriginThread() override {
+  void RunReplyOnOriginThread() override {
     DCHECK(!raster_buffer_);
     reply_.Run(analysis_, !HasFinishedRunning());
   }
 
  protected:
-  virtual ~RasterTaskImpl() { DCHECK(!raster_buffer_); }
+  ~RasterTaskImpl() override { DCHECK(!raster_buffer_); }
 
  private:
   void Analyze(const PicturePileImpl* picture_pile) {
@@ -166,7 +166,7 @@ class ImageDecodeTaskImpl : public ImageDecodeTask {
         reply_(reply) {}
 
   // Overridden from Task:
-  virtual void RunOnWorkerThread() override {
+  void RunOnWorkerThread() override {
     TRACE_EVENT0("cc", "ImageDecodeTaskImpl::RunOnWorkerThread");
 
     devtools_instrumentation::ScopedImageDecodeTask image_decode_task(
@@ -177,14 +177,12 @@ class ImageDecodeTaskImpl : public ImageDecodeTask {
   }
 
   // Overridden from RasterizerTask:
-  virtual void ScheduleOnOriginThread(RasterizerTaskClient* client) override {}
-  virtual void CompleteOnOriginThread(RasterizerTaskClient* client) override {}
-  virtual void RunReplyOnOriginThread() override {
-    reply_.Run(!HasFinishedRunning());
-  }
+  void ScheduleOnOriginThread(RasterizerTaskClient* client) override {}
+  void CompleteOnOriginThread(RasterizerTaskClient* client) override {}
+  void RunReplyOnOriginThread() override { reply_.Run(!HasFinishedRunning()); }
 
  protected:
-  virtual ~ImageDecodeTaskImpl() {}
+  ~ImageDecodeTaskImpl() override {}
 
  private:
   skia::RefPtr<SkPixelRef> pixel_ref_;