Reland of [DevTools] Migrate SoftContextMenu to use GlassPane

third_party/WebKit/Source/devtools/front_end/ui/ContextMenu.js

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 373 matching lines @@
     if (typeof this._beforeShow === 'function') {
       this._beforeShow();
       delete this._beforeShow;
     }
 
     var menuObject = this._buildDescriptors();
 
     UI._contextMenu = this;
     if (this._useSoftMenu || UI.ContextMenu._useSoftMenu || InspectorFrontendHost.isHostedMode()) {
       this._softMenu = new UI.SoftContextMenu(menuObject, this._itemSelected.bind(this));
-      this._softMenu.show(this._event.target.ownerDocument, this._x, this._y);
+      this._softMenu.show(this._event.target.ownerDocument, new AnchorBox(this._x, this._y, 0, 0));
     } else {
       InspectorFrontendHost.showContextMenuAtPoint(this._x, this._y, menuObject, this._event.target.ownerDocument);
 
       /**
        * @this {UI.ContextMenu}
        */
       function listenToEvents() {
         InspectorFrontendHost.events.addEventListener(
             InspectorFrontendHostAPI.Events.ContextMenuCleared, this._menuCleared, this);
         InspectorFrontendHost.events.addEventListener(
@@ skipping 72 matching lines @@
 UI.ContextMenu.Provider = function() {};
 
 UI.ContextMenu.Provider.prototype = {
   /**
    * @param {!Event} event
    * @param {!UI.ContextMenu} contextMenu
    * @param {!Object} target
    */
   appendApplicableItems(event, contextMenu, target) {}
 };