Standardize usage of virtual/override/final in cc/

cc/layers/heads_up_display_layer_impl.h

 // Copyright 2012 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.
 
 #ifndef CC_LAYERS_HEADS_UP_DISPLAY_LAYER_IMPL_H_
 #define CC_LAYERS_HEADS_UP_DISPLAY_LAYER_IMPL_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 14 matching lines @@
 
 class FrameRateCounter;
 class PaintTimeCounter;
 
 class CC_EXPORT HeadsUpDisplayLayerImpl : public LayerImpl {
  public:
   static scoped_ptr<HeadsUpDisplayLayerImpl> Create(LayerTreeImpl* tree_impl,
                                                     int id) {
     return make_scoped_ptr(new HeadsUpDisplayLayerImpl(tree_impl, id));
   }
-  virtual ~HeadsUpDisplayLayerImpl();
+  ~HeadsUpDisplayLayerImpl() override;
 
-  virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
-      override;
+  scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
 
-  virtual bool WillDraw(DrawMode draw_mode,
-                        ResourceProvider* resource_provider) override;
-  virtual void AppendQuads(RenderPass* render_pass,
-                           const Occlusion& occlusion_in_content_space,
-                           AppendQuadsData* append_quads_data) override;
+  bool WillDraw(DrawMode draw_mode,
+                ResourceProvider* resource_provider) override;
+  void AppendQuads(RenderPass* render_pass,
+                   const Occlusion& occlusion_in_content_space,
+                   AppendQuadsData* append_quads_data) override;
   void UpdateHudTexture(DrawMode draw_mode,
                         ResourceProvider* resource_provider);
 
-  virtual void ReleaseResources() override;
+  void ReleaseResources() override;
 
   bool IsAnimatingHUDContents() const { return fade_step_ > 0; }
 
  private:
   class Graph {
    public:
     Graph(double indicator_value, double start_upper_bound);
 
     // Eases the upper bound, which limits what is currently visible in the
     // graph, so that the graph always scales to either it's max or
     // default_upper_bound.
     double UpdateUpperBound();
 
     double value;
     double min;
     double max;
 
     double current_upper_bound;
     const double default_upper_bound;
     const double indicator;
   };
 
   HeadsUpDisplayLayerImpl(LayerTreeImpl* tree_impl, int id);
 
-  virtual const char* LayerTypeAsString() const override;
+  const char* LayerTypeAsString() const override;
 
-  virtual void AsValueInto(base::debug::TracedValue* dict) const override;
+  void AsValueInto(base::debug::TracedValue* dict) const override;
 
   void UpdateHudContents();
   void DrawHudContents(SkCanvas* canvas);
 
   void DrawText(SkCanvas* canvas,
                 SkPaint* paint,
                 const std::string& text,
                 SkPaint::Align align,
                 int size,
                 int x,
@@ skipping 48 matching lines @@
   std::vector<DebugRect> paint_rects_;
 
   base::TimeTicks time_of_last_graph_update_;
 
   DISALLOW_COPY_AND_ASSIGN(HeadsUpDisplayLayerImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_HEADS_UP_DISPLAY_LAYER_IMPL_H_