Move talk/media to webrtc/media

webrtc/api/api.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', ],
@@ skipping 44 matching lines @@
               ],
               'all_dependent_settings': {
                 'xcode_settings': {
                   'OTHER_LDFLAGS': [
                     '-framework CoreGraphics',
                     '-framework GLKit',
                     '-framework OpenGLES',
                     '-framework QuartzCore',
                   ]
                 }
-              }
+              },
+              # TODO(kjellander): Make the code compile without disabling these.

[kjellander_webrtc, 2016/01/20 21:12:17]

Without this I get:
../../webrtc/api/objc/RTCSessionDescription.mm:90:1: error: control may reach
end of non-void function [-Werror,-Wreturn-type]
}
^

I can't explain why this is needed now but not before, since this code hasn't
moved nor any of the headers it includes.

+              # See https://bugs.chromium.org/p/webrtc/issues/detail?id=3307
+              'cflags': [
+                '-Wno-return-type',
+              ],
+              'xcode_settings': {
+                'WARNING_CFLAGS': [
+                  '-Wno-return-type',
+                ],
+              },
             }],
             ['OS=="mac"', {
               'sources': [
                 'objc/RTCNSGLVideoView.h',
                 'objc/RTCNSGLVideoView.m',
               ],
             }],
           ],
           'xcode_settings': {
             'CLANG_ENABLE_OBJC_ARC': 'YES',
             'CLANG_WARN_OBJC_MISSING_PROPERTY_SYNTHESIS': 'YES',
             'GCC_PREFIX_HEADER': 'objc/WebRTC-Prefix.pch',
           },
         }
       ],
     }], # OS=="ios"
   ],
 }