Adds support for webrtc::test::ResourcePath on iOS

webrtc/test/test.gyp

 # Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 # TODO(andrew): consider moving test_support to src/base/test.
 {
@@ skipping 106 matching lines @@
         '<(webrtc_root)/system_wrappers/system_wrappers.gyp:system_wrappers',
       ],
       'sources': [
         'testsupport/fileutils.cc',
         'testsupport/fileutils.h',
         'testsupport/frame_reader.cc',
         'testsupport/frame_reader.h',
         'testsupport/frame_writer.cc',
         'testsupport/frame_writer.h',
         'testsupport/gtest_disable.h',
+        'testsupport/iosfileutils.mm',
         'testsupport/mock/mock_frame_reader.h',
         'testsupport/mock/mock_frame_writer.h',
         'testsupport/packet_reader.cc',
         'testsupport/packet_reader.h',
         'testsupport/perf_test.cc',
         'testsupport/perf_test.h',
         'testsupport/trace_to_stderr.cc',
         'testsupport/trace_to_stderr.h',
       ],
     },
@@ skipping 91 matching lines @@
             '../build/isolate.gypi',
           ],
           'sources': [
             'test_support_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }