[Clean Skeleton] Fix menu dismiss and positions.

ios/clean/chrome/browser/ui/presenters/menu_presentation_controller.h

 // Copyright 2016 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.
 
 // ======                        New Architecture                         =====
 // =         This code is only used in the new iOS Chrome architecture.       =
 // ============================================================================
 
 #ifndef IOS_CLEAN_CHROME_BROWSER_UI_PRESENTERS_MENU_PRESENTATION_CONTROLLER_H_
 #define IOS_CLEAN_CHROME_BROWSER_UI_PRESENTERS_MENU_PRESENTATION_CONTROLLER_H_
 
 #import <UIKit/UIKit.h>
 
+@protocol ToolbarCommands;
+
 // A presentation controller for presenting a "menu" interface: a (usually)
 // rectangular presentation that covers part of the window, and which doesn't
 // obscure the presenting view. The presenting view remains in the view
-// hierarchy. If the presenting view controller confroms to the
-// MenuPresentationDelegate protocol, that protocol will be used to determine
-// the region the menu appears in. Otherwise a default rectangular area is
-// used.
+// hierarchy.
+// The presented view controller (that is, the view controller that runs the
+// menu) should set the size of its view in -loadView or -viewDidLoad.
+// If the presenting view controller confroms to the MenuPresentationDelegate

[lpromero, 2017/01/05 14:27:04]

s/confroms/conforms

[marq (ping after 24h), 2017/01/09 18:05:00]

Done.

+// protocol, that protocol will be used to determine the region the menu
+// appears in; otherwise it will appear in the center of the presenting view
+// controller's view.
 @interface MenuPresentationController : UIPresentationController
+@property(nonatomic, assign) id<ToolbarCommands> toolbarCommandHandler;
 @end
 
 #endif  // IOS_CLEAN_CHROME_BROWSER_UI_PRESENTERS_MENU_PRESENTATION_CONTROLLER_H_