[Extensions Bindings] Move setHandleRequestWithPromise to util

extensions/renderer/resources/mime_handler_private_custom_bindings.js

 // Copyright 2015 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.
 
 /**
  * Custom bindings for the mime handler API.
  */
 
-var binding = require('binding').Binding.create('mimeHandlerPrivate');
+var binding =
+    apiBridge || require('binding').Binding.create('mimeHandlerPrivate');
+var utils = require('utils');
 
 var NO_STREAM_ERROR =
     'Streams are only available from a mime handler view guest.';
 var STREAM_ABORTED_ERROR = 'Stream has been aborted.';
 
 var servicePromise = Promise.all([
     requireAsync('content/public/renderer/frame_interfaces'),
     requireAsync('extensions/common/api/mime_handler.mojom'),
 ]).then(function(modules) {
   var frameInterfaces = modules[0];
@@ skipping 30 matching lines @@
     originalUrl: streamInfo.original_url,
     streamUrl: streamInfo.stream_url,
     tabId: streamInfo.tab_id,
     embedded: !!streamInfo.embedded,
     responseHeaders: headers,
   };
 }
 
 binding.registerCustomHook(function(bindingsAPI) {
   var apiFunctions = bindingsAPI.apiFunctions;
-  apiFunctions.setHandleRequestWithPromise('getStreamInfo', function() {
+  utils.handleRequestWithPromiseDoNotUse(
+      apiFunctions, 'mimeHandlerPrivate', 'getStreamInfo',
+      function() {
     if (!streamInfoPromise)
       streamInfoPromise = createStreamInfoPromise();
     return streamInfoPromise.then(constructStreamInfoDict);
   });
 
-  apiFunctions.setHandleRequestWithPromise('abortStream', function() {
+  utils.handleRequestWithPromiseDoNotUse(
+      apiFunctions, 'mimeHandlerPrivate', 'abortStream',
+      function() {
     return servicePromise.then(function(service) {
       return service.abortStream().then(function() {});
     }).catch(throwNoStreamError);
   });
 });
 
-exports.$set('binding', binding.generate());
+if (!apiBridge)
+  exports.$set('binding', binding.generate());