Use new RTCCameraVideoCapturer in AppRTCMobile.

webrtc/examples/objc/AppRTCMobile/ARDCaptureController.h

Index: webrtc/examples/objc/AppRTCMobile/ARDCaptureController.h
diff --git a/webrtc/examples/objc/AppRTCMobile/ARDCaptureController.h b/webrtc/examples/objc/AppRTCMobile/ARDCaptureController.h
new file mode 100644
index 0000000000000000000000000000000000000000..bdae93a8440bb8ed07162ba1739f72d3848a4980
--- /dev/null
+++ b/webrtc/examples/objc/AppRTCMobile/ARDCaptureController.h
@@ -0,0 +1,24 @@
+/*
+ *  Copyright 2017 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.
+ */
+
+#include <WebRTC/RTCCameraVideoCapturer.h>
+
+@class ARDSettingsModel;
+
+// Controls the camera. Handles starting the capture, switching cameras etc.
+@interface ARDCaptureController : NSObject
+
+- (instancetype)initWithCapturer:(RTCCameraVideoCapturer *)capturer
+                        settings:(ARDSettingsModel *)settings;
+- (void)startCapture;
+- (void)stopCapture;
+- (void)switchCamera;
+
+@end