Update {virtual,override,final} to follow C++11 style.

content/renderer/render_view_impl.h

Index: content/renderer/render_view_impl.h
diff --git a/content/renderer/render_view_impl.h b/content/renderer/render_view_impl.h
index 53f8ce75b9cc5668bbd9089ae74d90264e3cb0e2..4491fbf4db56153f9382c86e647bc0042621bcc7 100644
--- a/content/renderer/render_view_impl.h
+++ b/content/renderer/render_view_impl.h
@@ -453,9 +453,9 @@ class CONTENT_EXPORT RenderViewImpl
   SSLStatus GetSSLStatusOfFrame(blink::WebFrame* frame) const override;
   const std::string& GetAcceptLanguages() const override;
 #if defined(OS_ANDROID)
-  virtual void UpdateTopControlsState(TopControlsState constraints,
-                                      TopControlsState current,
-                                      bool animate) override;
+  void UpdateTopControlsState(TopControlsState constraints,
+                              TopControlsState current,
+                              bool animate) override;
 #endif
   bool uses_temporary_zoom_level() const { return uses_temporary_zoom_level_; }