Add files required to link with WebRTC for Chromium on iOS.

webrtc/base/base.gyp

 # Copyright (c) 2014 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', ],
@@ skipping 493 matching lines @@
             ],
           },
         }, {
           'sources!': [
             'ifaddrs-android.cc',
             'ifaddrs-android.h',
           ],
         }],
         ['OS=="ios"', {
           'sources/': [
-            ['include', 'macconversion.*'],
+            ['include', 'maccocoathreadhelper.h'],
+            ['include', 'maccocoathreadhelper.mm'],
+            ['include', 'macconversion.cc'],
+            ['include', 'macconversion.h'],
           ],
           'all_dependent_settings': {
             'xcode_settings': {
               'OTHER_LDFLAGS': [
                 '-framework CFNetwork',
                 '-framework Foundation',
                 '-framework Security',
                 '-framework SystemConfiguration',
                 '-framework UIKit',
               ],
@@ skipping 143 matching lines @@
           ],
         }, {
           'include_dirs': [
             '<(ssl_root)',
           ],
         }],
       ],
     },
   ],
 }