Add OVERRIDE to chrome/browser/.

chrome/browser/tab_contents/render_view_context_menu_mac.h

Index: chrome/browser/tab_contents/render_view_context_menu_mac.h
diff --git a/chrome/browser/tab_contents/render_view_context_menu_mac.h b/chrome/browser/tab_contents/render_view_context_menu_mac.h
index 56cd2d908bc90d85eb98856c5ca00066b17ade06..c4bd65646432e56bb97985e5c3dd24e098c5746c 100644
--- a/chrome/browser/tab_contents/render_view_context_menu_mac.h
+++ b/chrome/browser/tab_contents/render_view_context_menu_mac.h
@@ -23,7 +23,7 @@ class RenderViewContextMenuMac : public RenderViewContextMenu {
                            const ContextMenuParams& params,
                            NSView* parent_view);
   virtual ~RenderViewContextMenuMac();
-  virtual void ExecuteCommand(int id);
+  virtual void ExecuteCommand(int id) OVERRIDE;
 
   // RenderViewContextMenuDelegate implementation.
   virtual void UpdateMenuItem(int command_id,
@@ -32,13 +32,13 @@ class RenderViewContextMenuMac : public RenderViewContextMenu {
                               const string16& title) OVERRIDE;
 
  protected:
-  // RenderViewContextMenu implementation-
-  virtual void PlatformInit();
+  // RenderViewContextMenu implementation.
+  virtual void PlatformInit() OVERRIDE;
   virtual bool GetAcceleratorForCommandId(
       int command_id,
-      ui::Accelerator* accelerator);
+      ui::Accelerator* accelerator) OVERRIDE;
 
-  virtual void LookUpInDictionary();
+  virtual void LookUpInDictionary() OVERRIDE;
 
   void InitPlatformMenu();
  private: