[Mac] Fix Issue to Exit Fullscreen

chrome/browser/ui/cocoa/browser_window_controller_private.mm

 // Copyright (c) 2012 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_controller_private.h"
 
 #include <cmath>
 
 #import "base/auto_reset.h"
 #include "base/command_line.h"
@@ skipping 746 matching lines @@
 
   [self resetCustomAppKitFullscreenVariables];
   [[tabStripController_ activeTabContentsController]
       updateFullscreenWidgetFrame];
 
   [self showFullscreenExitBubbleIfNecessary];
   browser_->WindowFullscreenStateChanged();
 
   if (fullscreenLowPowerCoordinator_)
     fullscreenLowPowerCoordinator_->SetInFullscreenTransition(false);
+
+  if (shouldExitAfterEnteringFullscreen_) {
+    shouldExitAfterEnteringFullscreen_ = NO;
+    [self exitAppKitFullscreen];
+  }
 }
 
 - (void)windowWillExitFullScreen:(NSNotification*)notification {
   if (fullscreenLowPowerCoordinator_)
     fullscreenLowPowerCoordinator_->SetInFullscreenTransition(true);
 
   if (notification)  // For System Fullscreen when non-nil.
     [self registerForContentViewResizeNotifications];
   exitingAppKitFullscreen_ = YES;
 
@@ skipping 145 matching lines @@
 - (void)enterAppKitFullscreen {
   if (FramedBrowserWindow* framedBrowserWindow =
           base::mac::ObjCCast<FramedBrowserWindow>([self window])) {
     [framedBrowserWindow toggleSystemFullScreen];
   }
 }
 
 - (void)exitAppKitFullscreen {
   if (FramedBrowserWindow* framedBrowserWindow =
           base::mac::ObjCCast<FramedBrowserWindow>([self window])) {
+
+    // If we're in the process of entering fullscreen, toggleSystemFullscreen
+    // will get ignored. Set |shouldExitAfterEnteringFullscreen_| to true so
+    // the browser will exit fullscreen immediately after it enters it.
+    if (enteringAppKitFullscreen_) {
+      shouldExitAfterEnteringFullscreen_ = YES;
+      return;
+    }
+
     [framedBrowserWindow toggleSystemFullScreen];
   }
 }
 
 - (NSRect)fullscreenButtonFrame {
   NSButton* fullscreenButton =
       [[self window] standardWindowButton:NSWindowFullScreenButton];
   if (!fullscreenButton)
     return NSZeroRect;
 
@@ skipping 347 matching lines @@
   if (fullscreenLowPowerCoordinator_)
     fullscreenLowPowerCoordinator_->SetHasActiveSheet(false);
 }
 
 - (void)childWindowsDidChange {
   if (fullscreenLowPowerCoordinator_)
     fullscreenLowPowerCoordinator_->ChildWindowsChanged();
 }
 
 @end  // @implementation BrowserWindowController(Private)