Add the descriptor support needed for Pepper in a way that does...

chrome/chrome_renderer.gypi

 # Copyright (c) 2009 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.
 
 {
   'targets': [
     {
       'target_name': 'renderer',
       'type': '<(library)',
       'msvs_guid': '9301A569-5D2B-4D11-9332-B1E30AEACB8D',
@@ skipping 82 matching lines @@
         'renderer/external_extension.cc',
         'renderer/external_extension.h',
         'renderer/form_manager.cc',
         'renderer/form_manager.h',
         'renderer/geolocation_dispatcher.cc',
         'renderer/geolocation_dispatcher.h',
         'renderer/gpu_channel_host.cc',
         'renderer/gpu_channel_host.h',
         'renderer/localized_error.cc',
         'renderer/localized_error.h',
+        'renderer/nacl_desc_wrapper_chrome.cc',
         'renderer/navigation_state.h',
         'renderer/notification_provider.cc',
         'renderer/notification_provider.h',
         'renderer/paint_aggregator.cc',
         'renderer/pepper_devices.cc',
         'renderer/pepper_devices.h',
         'renderer/plugin_channel_host.cc',
         'renderer/plugin_channel_host.h',
         'renderer/print_web_view_helper.cc',
         'renderer/print_web_view_helper.h',
@@ skipping 118 matching lines @@
       ],
     },
   ],
 }
 
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