Standardize usage of virtual/override/final in cc/

cc/test/fake_layer_tree_host_client.h

Index: cc/test/fake_layer_tree_host_client.h
diff --git a/cc/test/fake_layer_tree_host_client.h b/cc/test/fake_layer_tree_host_client.h
index 9371e324378430b1ac57dc9a8b277cb18eb02def..d64a5b23cd4f125ee6db8558868c8bc03265e80a 100644
--- a/cc/test/fake_layer_tree_host_client.h
+++ b/cc/test/fake_layer_tree_host_client.h
@@ -24,34 +24,34 @@ class FakeLayerTreeHostClient : public LayerTreeHostClient,
     DELEGATED_SOFTWARE
   };
   explicit FakeLayerTreeHostClient(RendererOptions options);
-  virtual ~FakeLayerTreeHostClient();
+  ~FakeLayerTreeHostClient() override;
 
   // Caller responsible for unsetting this and maintaining the host's lifetime.
   void SetLayerTreeHost(LayerTreeHost* host) { host_ = host; }
 
   // LayerTreeHostClient implementation.
-  virtual void WillBeginMainFrame(int frame_id) override {}
-  virtual void DidBeginMainFrame() override {}
-  virtual void BeginMainFrame(const BeginFrameArgs& args) override {}
-  virtual void Layout() override {}
-  virtual void ApplyViewportDeltas(const gfx::Vector2d& inner_delta,
-                                   const gfx::Vector2d& outer_delta,
-                                   float page_scale,
-                                   float top_controls_delta) override {}
-  virtual void ApplyViewportDeltas(const gfx::Vector2d& scroll_delta,
-                                   float page_scale,
-                                   float top_controls_delta) override {}
+  void WillBeginMainFrame(int frame_id) override {}
+  void DidBeginMainFrame() override {}
+  void BeginMainFrame(const BeginFrameArgs& args) override {}
+  void Layout() override {}
+  void ApplyViewportDeltas(const gfx::Vector2d& inner_delta,
+                           const gfx::Vector2d& outer_delta,
+                           float page_scale,
+                           float top_controls_delta) override {}
+  void ApplyViewportDeltas(const gfx::Vector2d& scroll_delta,
+                           float page_scale,
+                           float top_controls_delta) override {}
 
-  virtual void RequestNewOutputSurface(bool fallback) override;
-  virtual void DidInitializeOutputSurface() override {}
-  virtual void WillCommit() override {}
-  virtual void DidCommit() override {}
-  virtual void DidCommitAndDrawFrame() override {}
-  virtual void DidCompleteSwapBuffers() override {}
+  void RequestNewOutputSurface(bool fallback) override;
+  void DidInitializeOutputSurface() override {}
+  void WillCommit() override {}
+  void DidCommit() override {}
+  void DidCommitAndDrawFrame() override {}
+  void DidCompleteSwapBuffers() override {}
 
   // LayerTreeHostSingleThreadClient implementation.
-  virtual void DidPostSwapBuffers() override {}
-  virtual void DidAbortSwapBuffers() override {}
+  void DidPostSwapBuffers() override {}
+  void DidAbortSwapBuffers() override {}
 
  private:
   bool use_software_rendering_;