Revert of RELAND: ImageCapture: Implement takePhoto() for Mac AVFoundation

media/capture/video/mac/video_capture_device_avfoundation_mac.h

Index: media/capture/video/mac/video_capture_device_avfoundation_mac.h
diff --git a/media/capture/video/mac/video_capture_device_avfoundation_mac.h b/media/capture/video/mac/video_capture_device_avfoundation_mac.h
index 69082e7aac0d7f9af2d3a4b8963313e1f241c73c..8198bcd3a9e34ffddcfa4fa91fd32598e87e0b62 100644
--- a/media/capture/video/mac/video_capture_device_avfoundation_mac.h
+++ b/media/capture/video/mac/video_capture_device_avfoundation_mac.h
@@ -21,9 +21,8 @@
 @class CrAVCaptureDevice;
 @class CrAVCaptureSession;
 @class CrAVCaptureVideoDataOutput;
-@class CrAVCaptureStillImageOutput;
 
-// Class used by VideoCaptureDeviceMac (VCDM) for video and image capture using
+// Class used by VideoCaptureDeviceMac (VCDM) for video capture using
 // AVFoundation API. This class lives inside the thread created by its owner
 // VCDM.
 //
@@ -63,7 +62,7 @@
   int frameHeight_;
   float frameRate_;
 
-  base::Lock lock_;  // Protects concurrent setting and using |frameReceiver_|.
+  base::Lock lock_;  // Protects concurrent setting and using of frameReceiver_.
   media::VideoCaptureDeviceMac* frameReceiver_;  // weak.
 
   base::scoped_nsobject<CrAVCaptureSession> captureSession_;
@@ -74,9 +73,6 @@
   // |captureDeviceInput_| is owned by |captureSession_|.
   CrAVCaptureDeviceInput* captureDeviceInput_;
   base::scoped_nsobject<CrAVCaptureVideoDataOutput> captureVideoDataOutput_;
-
-  // An AVDataOutput specialized for taking pictures out of |captureSession_|.
-  base::scoped_nsobject<CrAVCaptureStillImageOutput> stillImageOutput_;
 
   base::ThreadChecker main_thread_checker_;
 }
@@ -118,10 +114,6 @@
 // Stops video capturing and stops listening to notifications.
 - (void)stopCapture;
 
-// Takes a photo. This method should only be called between -startCapture and
-// -stopCapture.
-- (void)takePhoto;
-
 @end
 
 #endif  // MEDIA_CAPTURE_VIDEO_MAC_VIDEO_CAPTURE_DEVICE_AVFOUNDATION_MAC_H_