[ObjC ARC] Converts ios/chrome/browser/ui/popup_menu:popup_menu to ARC.

ios/chrome/browser/ui/popup_menu/popup_menu_controller.h

 // Copyright 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.
 
 #ifndef IOS_CHROME_BROWSER_UI_POPUP_MENU_POPUP_MENU_CONTROLLER_H_
 #define IOS_CHROME_BROWSER_UI_POPUP_MENU_POPUP_MENU_CONTROLLER_H_
 
 #import <UIKit/UIKit.h>
 
 @class PopupMenuController;
 @class PopupMenuView;
 
 // A protocol required by delegates of the PopupMenuController.
 @protocol PopupMenuDelegate
 // Instructs the delegate the PopupMenuController is done and should be
 // dismissed.
 - (void)dismissPopupMenu:(PopupMenuController*)controller;
 @end
 
 // The base view controller for popup menus within the top toolbar like the
 // Tools menu.
 @interface PopupMenuController : NSObject
 
 // View that contains all subviews. Subclasses should add their views to
 // |containerView_|.
-@property(nonatomic, readonly, retain) UIView* containerView;
+@property(nonatomic, readonly, strong) UIView* containerView;
 // Displays the background and border of the popup.
-@property(nonatomic, readonly, retain) PopupMenuView* popupContainer;
+@property(nonatomic, readonly, strong) PopupMenuView* popupContainer;
 // Button used to dismiss the popup. Covers the entire window behind the popup
 // menu. Catches any touch events outside of the popup and invokes
 // |-tappedBehindPopup:| if there are any.
-@property(nonatomic, readonly, retain) UIButton* backgroundButton;
+@property(nonatomic, readonly, strong) UIButton* backgroundButton;
 // Delegate for the popup menu.
-@property(nonatomic, assign) id<PopupMenuDelegate> delegate;
+@property(nonatomic, weak) id<PopupMenuDelegate> delegate;
 
 // Initializes the PopupMenuController and adds its views inside of parent.
 - (id)initWithParentView:(UIView*)parent;
 
 // The designated initializer.
 // Initializes the PopupMenuController and adds its views inside of parent.
 // Additional backgroundButton params are used to change the look and behavior
 // of |backgroundButton_|.
 // backgroundButtonParent is the view to add |backgroundButton_| to. If nil,
 // |backgroundButton_| is added to |containerView_|.
@@ skipping 23 matching lines @@
                 toDestination:(CGPoint)destination;
 - (void)dismissAnimatedWithCompletion:(void (^)(void))completion;
 
 // Called to display the popup with a fade in animation. |completionBlock| is
 // executed once the fade animation is complete.
 - (void)fadeInPopup:(void (^)(BOOL finished))completionBlock;
 
 @end
 
 #endif  // IOS_CHROME_BROWSER_UI_POPUP_MENU_POPUP_MENU_CONTROLLER_H_