DevTools: promisify ContentProvider.requestContent and all its clients.

third_party/WebKit/Source/devtools/front_end/extensions/ExtensionServer.js

 /*
  * Copyright (C) 2011 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 506 matching lines @@
                 contentEncoded = contentProvider.contentEncoded;
             if (contentProvider instanceof WebInspector.NetworkRequest)
                 contentEncoded = contentProvider.contentEncoded;
             var response = {
                 encoding: contentEncoded && content ? "base64" : "",
                 content: content
             };
             this._dispatchCallback(message.requestId, port, response);
         }
 
-        contentProvider.requestContent(onContentAvailable.bind(this));
+        contentProvider.requestContent().then(onContentAvailable.bind(this));
     },
 
     _onGetRequestContent: function(message, port)
     {
         var request = this._requestById(message.id);
         if (!request)
             return this._status.E_NOTFOUND(message.id);
         this._getResourceContent(request, message, port);
     },
 
@@ skipping 543 matching lines @@
 /**
  * @typedef {{code: string, description: string, details: !Array.<*>}}
  */
 WebInspector.ExtensionStatus.Record;
 
 WebInspector.extensionAPI = {};
 defineCommonExtensionSymbols(WebInspector.extensionAPI);
 
 /** @type {!WebInspector.ExtensionServer} */
 WebInspector.extensionServer;