Swap main menu with app-specific menu when app window focused.

chrome/browser/ui/cocoa/apps/app_menu_controller_mac.h

Index: chrome/browser/ui/cocoa/apps/app_menu_controller_mac.h
diff --git a/chrome/browser/ui/cocoa/apps/app_menu_controller_mac.h b/chrome/browser/ui/cocoa/apps/app_menu_controller_mac.h
new file mode 100644
index 0000000000000000000000000000000000000000..bcdea2ec14f679c2976d4d6f916795d0131ac089
--- /dev/null
+++ b/chrome/browser/ui/cocoa/apps/app_menu_controller_mac.h
@@ -0,0 +1,30 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.

[tapted, 2013/08/15 04:39:23]

nit: no (c)

[jackhou1, 2013/08/16 02:50:41]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_UI_COCOA_APPS_APP_MENU_CONTROLLER_MAC_H_
+#define CHROME_BROWSER_UI_COCOA_APPS_APP_MENU_CONTROLLER_MAC_H_
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/mac/scoped_nsobject.h"
+
+// This controller listens to NSWindowDidBecomeMainNotification and
+// NSWindowDidResignMainNotification and modifies the main menu bar to mimic a
+// main menu for the app. When an app window becomes main, all Chrome menu items
+// are hidden and menu items for the app are appended to the main menu. When the
+// app window resigns main, its menu items are removed and all Chrome menu items
+// are unhidden.
+@interface AppMenuController : NSObject {
+ @private
+  // The app id of the currently focused packaged app.

[tapted, 2013/08/15 04:39:23]

nit: maybe in the comment call it an extension id in case someone thinks there's
a different id namespace for apps..

[jackhou1, 2013/08/16 02:50:41]

Done.

+  base::scoped_nsobject<NSString> appId_;
+  // An array of items related to the currently focused packaged app.
+  base::scoped_nsobject<NSMutableArray> appMenuItems_;

[tapted, 2013/08/15 04:39:23]

I think until we add multiple items, this should just be a single NSMenuItem
rather han an array.

[jackhou1, 2013/08/16 02:50:41]

Done.

+}
+
+- (id)init;

[tapted, 2013/08/15 04:39:23]

Don't need to redeclare this, since you inherit the dec from NSObject.

[jackhou1, 2013/08/16 02:50:41]

Done.

+
+@end
+
+#endif  // CHROME_BROWSER_UI_COCOA_APPS_APP_MENU_CONTROLLER_MAC_H_