Remove ContextMenuController.

ios/chrome/browser/ui/context_menu/context_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_CONTEXT_MENU_CONTEXT_MENU_CONTROLLER_H_
-#define IOS_CHROME_BROWSER_UI_CONTEXT_MENU_CONTEXT_MENU_CONTROLLER_H_
-
-#import <UIKit/UIKit.h>
-
-#include "base/ios/block_types.h"
-
-@class ContextMenuHolder;
-
-// Abstracts displaying context menus for all device form factors, given a
-// ContextMenuHolder with the title and action to associate to each menu
-// item. Will show a sheet on the phone and use a popover on a tablet.
-@interface ContextMenuController : NSObject
-
-// Whether the context menu is visible.
-@property(nonatomic, readonly, getter=isVisible) BOOL visible;
-
-// Displays a context menu. If on a tablet, |localPoint| is the point in
-// |view|'s coordinates to show the popup. If a phone, |localPoint| is unused
-// since the display is a sheet, but |view| is still used to attach the sheet to
-// the given view.
-// The |menuHolder| that will be put in the menu.
-- (void)showWithHolder:(ContextMenuHolder*)menuHolder
-               atPoint:(CGPoint)localPoint
-                inView:(UIView*)view;
-
-// Dismisses displayed context menu.
-- (void)dismissAnimated:(BOOL)animated
-      completionHandler:(ProceduralBlock)completionHandler;
-
-@end
-
-#endif  // IOS_CHROME_BROWSER_UI_CONTEXT_MENU_CONTEXT_MENU_CONTROLLER_H_