Revert of Unify the macOS and iOS capturer implementations

webrtc/modules/video_capture/mac/qtkit/video_capture_qtkit_objc.h

Index: webrtc/modules/video_capture/mac/qtkit/video_capture_qtkit_objc.h
diff --git a/webrtc/modules/video_capture/mac/qtkit/video_capture_qtkit_objc.h b/webrtc/modules/video_capture/mac/qtkit/video_capture_qtkit_objc.h
new file mode 100644
index 0000000000000000000000000000000000000000..50076003cbb11a6b0972156eb716c1f4575de2fa
--- /dev/null
+++ b/webrtc/modules/video_capture/mac/qtkit/video_capture_qtkit_objc.h
@@ -0,0 +1,61 @@
+/*
+ *  Copyright (c) 2011 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.
+ */
+
+//
+//  video_capture_qtkit_objc.h
+//
+//
+
+#ifndef WEBRTC_MODULES_VIDEO_CAPTURE_MAIN_SOURCE_MAC_QTKIT_VIDEO_CAPTURE_QTKIT_OBJC_H_
+#define WEBRTC_MODULES_VIDEO_CAPTURE_MAIN_SOURCE_MAC_QTKIT_VIDEO_CAPTURE_QTKIT_OBJC_H_
+
+#import <AppKit/AppKit.h>
+#import <CoreData/CoreData.h>
+#import <CoreFoundation/CoreFoundation.h>
+#import <CoreVideo/CoreVideo.h>
+#import <Foundation/Foundation.h>
+#import <QTKit/QTKit.h>
+
+#include "webrtc/modules/video_capture/mac/qtkit/video_capture_qtkit.h"
+
+@interface VideoCaptureMacQTKitObjC : NSObject {
+  bool _capturing;
+  int _frameRate;
+  int _frameWidth;
+  int _frameHeight;
+  int _framesDelivered;
+  int _framesRendered;
+  bool _captureInitialized;
+
+  webrtc::videocapturemodule::VideoCaptureMacQTKit* _owner;
+  NSLock* _lock;
+
+  QTCaptureSession* _captureSession;
+  QTCaptureDeviceInput* _captureVideoDeviceInput;
+  QTCaptureDecompressedVideoOutput* _captureDecompressedVideoOutput;
+  NSArray* _captureDevices;
+  int _captureDeviceCount;
+  char _captureDeviceNameUTF8[1024];
+  char _captureDeviceNameUniqueID[1024];
+}
+
+- (void)getCaptureDevices;
+- (BOOL)initializeVideoCapture;
+- (BOOL)initializeVariables;
+
+- (void)registerOwner:(webrtc::videocapturemodule::VideoCaptureMacQTKit*)owner;
+- (BOOL)setCaptureDeviceById:(char*)uniqueId;
+- (void)setCaptureHeight:(int)height width:(int)width frameRate:(int)frameRate;
+- (void)startCapture;
+- (void)stopCapture;
+
+@end
+
+#endif  // WEBRTC_MODULES_VIDEO_CAPTURE_MAIN_SOURCE_MAC_QTKIT_VIDEO_CAPTURE_QTKIT_OBJC_H_