Move more extension action cocoa logic into the platform delegate

chrome/browser/ui/cocoa/toolbar/toolbar_action_view_delegate_cocoa.h

 // Copyright 2014 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 CHROME_BROWSER_UI_COCOA_TOOLBAR_TOOLBAR_ACTION_VIEW_DELEGATE_COCOA_H_
 #define CHROME_BROWSER_UI_COCOA_TOOLBAR_TOOLBAR_ACTION_VIEW_DELEGATE_COCOA_H_
 
 #include "chrome/browser/ui/toolbar/toolbar_action_view_delegate.h"
 
+@class ExtensionActionContextMenuController;
+
 class ToolbarActionViewDelegateCocoa : public ToolbarActionViewDelegate {
  public:
   // A cocoa-specific implementation to return the point used when showing a
   // popup.
   virtual NSPoint GetPopupPoint() = 0;
+
+  // TODO(devlin): Ideally, this would take a
+  // ToolbarActionContextMenuController, but that doesn't exist (yet).
+  virtual void SetContextMenuController(
+      ExtensionActionContextMenuController* menuController) = 0;
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_TOOLBAR_TOOLBAR_ACTION_VIEW_DELEGATE_COCOA_H_