Refactor: Untangle Mac's ExclusiveAccessContext from BrowserWindow

chrome/browser/ui/cocoa/browser_window_command_handler.mm

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/browser_window_command_handler.h"
 
 #include "base/logging.h"
 #import "base/mac/foundation_util.h"
 #include "chrome/app/chrome_command_ids.h"
 #import "chrome/browser/app_controller_mac.h"
@@ skipping 35 matching lines @@
   DCHECK(browser);
 
   // On Windows this logic happens in bookmark_bar_view.cc. This simply updates
   // the menu item; it does not display the bookmark bar itself.
   if (tag == IDC_SHOW_BOOKMARK_BAR) {
     SetToggleState(browser->window()->IsBookmarkBarVisible(), item);
     return;
   }
 
   if (tag == IDC_TOGGLE_FULLSCREEN_TOOLBAR) {
-    SetToggleState(browser->window()->ShouldHideFullscreenToolbar(), item);
+    BrowserWindowController* controller =
+        [browser->window()->GetNativeWindow() windowController];
+    SetToggleState([controller shouldHideFullscreenToolbar], item);
     return;
   }
 
   // Update the checked/unchecked state of items in the encoding menu.
   // On Windows, this logic is part of |EncodingMenuModel| in
   // browser/ui/views/toolbar_view.h.
   EncodingMenuController encoding_controller;
   if (!encoding_controller.DoesCommandBelongToEncodingMenu(tag))
     return;
 
@@ skipping 194 matching lines @@
     // the background" in this case.
     modifierFlags &= ~NSCommandKeyMask;
   }
   chrome::ExecuteCommandWithDisposition(
       FindBrowserForSender(sender, window), command,
       ui::WindowOpenDispositionFromNSEventWithFlags([NSApp currentEvent],
                                                     modifierFlags));
 }
 
 @end