[Mac] Refactor the Fullscreen Toolbar Visibility Locks

chrome/browser/ui/cocoa/browser_window_controller_private.h

Index: chrome/browser/ui/cocoa/browser_window_controller_private.h
diff --git a/chrome/browser/ui/cocoa/browser_window_controller_private.h b/chrome/browser/ui/cocoa/browser_window_controller_private.h
index 9474d5794c07f5bca1f0b7f49eedb9c1dac26450..8a29df1e88e401bced9accaf41a9e47e8651856d 100644
--- a/chrome/browser/ui/cocoa/browser_window_controller_private.h
+++ b/chrome/browser/ui/cocoa/browser_window_controller_private.h
@@ -87,16 +87,6 @@ class WebContents;
 - (void)registerForContentViewResizeNotifications;
 - (void)deregisterForContentViewResizeNotifications;
 
-// Allows/prevents bar visibility locks and releases from updating the visual
-// state. Enabling makes changes instantaneously; disabling cancels any
-// timers/animation.
-- (void)enableBarVisibilityUpdates;
-- (void)disableBarVisibilityUpdates;
-
-// If there are no visibility locks and bar visibity updates are enabled, hides
-// the bar with |animation|.  Otherwise, does nothing.
-- (void)hideOverlayIfPossibleWithAnimation:(BOOL)animation;
-
 // The opacity for the toolbar divider; 0 means that it shouldn't be shown.
 - (CGFloat)toolbarDividerOpacity;