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

content/renderer/web_ui_mojo_context_state.h

Index: content/renderer/web_ui_mojo_context_state.h
diff --git a/content/renderer/web_ui_mojo_context_state.h b/content/renderer/web_ui_mojo_context_state.h
index 237feb52628e1537a6231f8e93a5dc590908875f..e8879afa5e8a4021d54e1aaf71e3f2fbfd9e6b4b 100644
--- a/content/renderer/web_ui_mojo_context_state.h
+++ b/content/renderer/web_ui_mojo_context_state.h
@@ -35,7 +35,7 @@ class WebUIMojoContextState : public gin::ModuleRegistryObserver {
  public:
   WebUIMojoContextState(blink::WebFrame* frame,
                         v8::Handle<v8::Context> context);
-  virtual ~WebUIMojoContextState();
+  ~WebUIMojoContextState() override;
 
   void Run();
 
@@ -58,7 +58,7 @@ class WebUIMojoContextState : public gin::ModuleRegistryObserver {
                              const std::string& data);
 
   // gin::ModuleRegistryObserver overrides:
-  virtual void OnDidAddPendingModule(
+  void OnDidAddPendingModule(
       const std::string& id,
       const std::vector<std::string>& dependencies) override;