Add new view that renders local video using AVCaptureLayerPreview.

talk/libjingle.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 346 matching lines @@
             # like it is for ios.
             'CLANG_WARN_OBJC_MISSING_PROPERTY_SYNTHESIS': 'NO',
           },
           'conditions': [
             ['OS=="ios"', {
               'sources': [
                 'app/webrtc/objc/avfoundationvideocapturer.h',
                 'app/webrtc/objc/avfoundationvideocapturer.mm',
                 'app/webrtc/objc/RTCAVFoundationVideoSource+Internal.h',
                 'app/webrtc/objc/RTCAVFoundationVideoSource.mm',
+                'app/webrtc/objc/RTCCameraPreviewView.mm',
+                'app/webrtc/objc/public/RTCCameraPreviewView.h',
                 'app/webrtc/objc/RTCEAGLVideoView.m',
                 'app/webrtc/objc/public/RTCEAGLVideoView.h',
                 'app/webrtc/objc/public/RTCAVFoundationVideoSource.h',
               ],
               'link_settings': {
                 'xcode_settings': {
                   'OTHER_LDFLAGS': [
                     '-framework CoreGraphics',
                     '-framework GLKit',
                   ],
@@ skipping 416 matching lines @@
         ['OS=="android" and build_with_chromium==0', {
           'sources': [
             'app/webrtc/androidvideocapturer.h',
             'app/webrtc/androidvideocapturer.cc',
            ],
         }],
       ],
     },  # target libjingle_peerconnection
   ],
 }