| Index: chrome/browser/ui/exclusive_access/exclusive_access_context.h | 
| diff --git a/chrome/browser/ui/exclusive_access/exclusive_access_context.h b/chrome/browser/ui/exclusive_access/exclusive_access_context.h | 
| index 36fc41baff6d2fda9dc71544abd942d7d2551202..08e9a7c33740fc8caec15f27dd850466564ede83 100644 | 
| --- a/chrome/browser/ui/exclusive_access/exclusive_access_context.h | 
| +++ b/chrome/browser/ui/exclusive_access/exclusive_access_context.h | 
| @@ -36,6 +36,10 @@ class ExclusiveAccessContext { | 
| // Currently only supported on Mac. | 
| virtual void UpdateFullscreenWithToolbar(bool with_toolbar); | 
|  | 
| +  // Toggles the toolbar state to be hidden or shown in fullscreen. | 
| +  // Currently only supported on Mac. | 
| +  virtual void ToggleFullscreenToolbar(); | 
| + | 
| // Returns true if the window is fullscreen with additional UI elements. See | 
| // EnterFullscreen |with_toolbar|. | 
| virtual bool IsFullscreenWithToolbar() const = 0; | 
|  |