Remove DeviceManager and DeviceInfo.

talk/app/webrtc/legacy_objc_api.gyp

 #
 # libjingle
 # Copyright 2012 Google Inc.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
 #
 #  1. Redistributions of source code must retain the above copyright notice,
 #     this list of conditions and the following disclaimer.
 #  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 160 matching lines @@
                 # on OSX.
                 'MACOSX_DEPLOYMENT_TARGET' : '10.7',
                 # RTCVideoTrack.mm uses code with partial availability.
                 # https://code.google.com/p/webrtc/issues/detail?id=4695
                 'WARNING_CFLAGS!': ['-Wpartial-availability'],
               },
               'link_settings': {
                 'xcode_settings': {
                   'OTHER_LDFLAGS': [
                     '-framework Cocoa',
+                    '-framework OpenGL',
                   ],
                 },
               },
             }],
           ],
         },  # target libjingle_peerconnection_objc
       ],
     }],
   ],
 }