DevTools: promisify ContentProvider.requestContent and all its clients.

third_party/WebKit/Source/devtools/front_end/network/ResourceWebSocketFrameView.js

 /*
  * Copyright (C) 2012 Research In Motion Limited. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 99 matching lines @@
         this._dataGrid.insertChild(new WebInspector.ResourceWebSocketFrameNode(frame));
     },
 
     /**
      * @param {!WebInspector.Event} event
      */
     _onFrameSelected: function(event)
     {
         var selectedNode = /** @type {!WebInspector.ResourceWebSocketFrameNode} */ (event.target.selectedNode);
         var contentProvider = selectedNode.contentProvider();
-        contentProvider.requestContent(content => {
+        contentProvider.requestContent().then(content => {
             var parsedJSON = content ? WebInspector.JSONView.parseJSON(content) : null;
             var view = parsedJSON ? new WebInspector.JSONView(parsedJSON) : new WebInspector.ResourceSourceFrame(contentProvider);
             this._splitWidget.setSidebarWidget(view);
         });
     },
 
     refresh: function()
     {
         this._dataGrid.rootNode().removeChildren();
         var frames = this._request.frames();
@@ skipping 84 matching lines @@
 
 /**
  * @param {!WebInspector.ResourceWebSocketFrameNode} a
  * @param {!WebInspector.ResourceWebSocketFrameNode} b
  * @return {number}
  */
 WebInspector.ResourceWebSocketFrameNodeTimeComparator = function(a, b)
 {
     return a._frame.time - b._frame.time;
 }