Move some extensions renderer resources to extensions_renderer_resources.grd.

extensions/renderer/resources/runtime_custom_bindings.js

 // Copyright (c) 2012 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 binding for the runtime API.
 
 var binding = require('binding').Binding.create('runtime');
 
 var messaging = require('messaging');
 var runtimeNatives = requireNative('runtime');
@@ skipping 185 matching lines @@
       request.callback(bg);
     }
     request.callback = null;
   });
 
   bindDirectoryEntryCallback('getPackageDirectoryEntry', apiFunctions);
 });
 
 exports.bindDirectoryEntryCallback = bindDirectoryEntryCallback;
 exports.binding = binding.generate();