Add check on invalid file descriptor at both broker and renderer sides.

content/content_tests.gypi

 # Copyright (c) 2011 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': 'test_support_content',
       'type': 'static_library',
       'defines!': ['CONTENT_IMPLEMENTATION'],
@@ skipping 193 matching lines @@
         'renderer/active_notification_tracker_unittest.cc',
         'renderer/gpu/input_event_filter_unittest.cc',
         'renderer/media/audio_message_filter_unittest.cc',
         'renderer/media/audio_renderer_impl_unittest.cc',
         'renderer/media/capture_video_decoder_unittest.cc',
         'renderer/media/media_stream_dispatcher_unittest.cc',
         'renderer/media/rtc_video_decoder_unittest.cc',
         'renderer/media/video_capture_impl_unittest.cc',
         'renderer/media/video_capture_message_filter_unittest.cc',
         'renderer/paint_aggregator_unittest.cc',
+        'renderer/pepper_plugin_delegate_impl_unittest.cc',
         'renderer/v8_value_converter_impl_unittest.cc',
         'test/run_all_unittests.cc',
       ],
       'conditions': [
         ['input_speech==0', {
           'sources/': [
             ['exclude', '^browser/speech/'],
           ]
         }],
         ['notifications==0', {
@@ skipping 131 matching lines @@
           ],
           'sources': [
             'common/gpu/media/omx_video_decode_accelerator_unittest.cc',
           ],
         }
       ],
     },
    ],
   ],
 }