Update API for Objective-C RTCDataChannelConfiguration.

webrtc/api/api_tests.gyp

 # Copyright (c) 2015 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.
 
 {
   'includes': [ '../build/common.gypi', ],
   'conditions': [
     ['OS=="ios"', {
       'targets': [
         {
           'target_name': 'rtc_api_objc_test',
           'type': 'executable',
           'dependencies': [
             '<(webrtc_root)/api/api.gyp:rtc_api_objc',
             '<(webrtc_root)/base/base_tests.gyp:rtc_base_tests_utils',
           ],
           'sources': [
             'objctests/RTCConfigurationTest.mm',
+            'objctests/RTCDataChannelConfigurationTest.mm',
             'objctests/RTCIceCandidateTest.mm',
             'objctests/RTCIceServerTest.mm',
             'objctests/RTCMediaConstraintsTest.mm',
             'objctests/RTCSessionDescriptionTest.mm',
           ],
           'xcode_settings': {
             'CLANG_ENABLE_OBJC_ARC': 'YES',
             'CLANG_WARN_OBJC_MISSING_PROPERTY_SYNTHESIS': 'YES',
             'GCC_PREFIX_HEADER': 'objc/WebRTC-Prefix.pch',
             # |-ObjC| flag needed to make sure category method implementations
             # are included:
             # https://developer.apple.com/library/mac/qa/qa1490/_index.html
             'OTHER_LDFLAGS': ['-ObjC'],
           },
         }
       ],
     }], # OS=="ios"
   ],
 }