Revert of Unify the macOS and iOS capturer implementations

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

Index: webrtc/modules/video_capture/mac/qtkit/video_capture_qtkit_info.h
diff --git a/webrtc/modules/video_capture/mac/qtkit/video_capture_qtkit_info.h b/webrtc/modules/video_capture/mac/qtkit/video_capture_qtkit_info.h
new file mode 100644
index 0000000000000000000000000000000000000000..fd994ad67629bb69a74c9380d675c7afebb1f253
--- /dev/null
+++ b/webrtc/modules/video_capture/mac/qtkit/video_capture_qtkit_info.h
@@ -0,0 +1,93 @@
+/*
+ *  Copyright (c) 2012 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.
+ */
+
+#ifndef WEBRTC_MODULES_VIDEO_CAPTURE_MAIN_SOURCE_MAC_QTKIT_VIDEO_CAPTURE_QTKIT_INFO_H_
+#define WEBRTC_MODULES_VIDEO_CAPTURE_MAIN_SOURCE_MAC_QTKIT_VIDEO_CAPTURE_QTKIT_INFO_H_
+
+#include "webrtc/modules/video_capture/device_info_impl.h"
+#include "webrtc/modules/video_capture/mac/qtkit/video_capture_qtkit_utility.h"
+#include "webrtc/modules/video_capture/video_capture_impl.h"
+
+
+@class VideoCaptureMacQTKitInfoObjC;
+
+namespace webrtc
+{
+namespace videocapturemodule
+{
+
+class VideoCaptureMacQTKitInfo: public DeviceInfoImpl
+{
+public:
+
+   VideoCaptureMacQTKitInfo(const int32_t id);
+    virtual ~VideoCaptureMacQTKitInfo();
+
+    int32_t Init();
+
+    virtual uint32_t NumberOfDevices();
+
+    /*
+     * Returns the available capture devices.
+     * deviceNumber   -[in] index of capture device
+     * deviceNameUTF8 - friendly name of the capture device
+     * deviceUniqueIdUTF8 - unique name of the capture device if it exist.
+     *      Otherwise same as deviceNameUTF8
+     * productUniqueIdUTF8 - unique product id if it exist. Null terminated
+     *      otherwise.
+     */
+    virtual int32_t GetDeviceName(
+        uint32_t deviceNumber, char* deviceNameUTF8,
+        uint32_t deviceNameLength, char* deviceUniqueIdUTF8,
+        uint32_t deviceUniqueIdUTF8Length,
+        char* productUniqueIdUTF8 = 0,
+        uint32_t productUniqueIdUTF8Length = 0);
+
+    /*
+     *   Returns the number of capabilities for this device
+     */
+    virtual int32_t NumberOfCapabilities(
+        const char* deviceUniqueIdUTF8);
+
+    /*
+     *   Gets the capabilities of the named device
+     */
+    virtual int32_t GetCapability(
+        const char* deviceUniqueIdUTF8,
+        const uint32_t deviceCapabilityNumber,
+        VideoCaptureCapability& capability);
+
+    /*
+     *  Gets the capability that best matches the requested width, height and frame rate.
+     *  Returns the deviceCapabilityNumber on success.
+     */
+    virtual int32_t GetBestMatchedCapability(
+        const char* deviceUniqueIdUTF8,
+        const VideoCaptureCapability& requested,
+        VideoCaptureCapability& resulting);
+
+    /*
+     * Display OS /capture device specific settings dialog
+     */
+    virtual int32_t DisplayCaptureSettingsDialogBox(
+        const char* deviceUniqueIdUTF8,
+        const char* dialogTitleUTF8, void* parentWindow,
+        uint32_t positionX, uint32_t positionY);
+
+protected:
+    virtual int32_t CreateCapabilityMap(
+        const char* deviceUniqueIdUTF8);
+
+    VideoCaptureMacQTKitInfoObjC*    _captureInfo;
+};
+}  // namespace videocapturemodule
+}  // namespace webrtc
+
+#endif  // WEBRTC_MODULES_VIDEO_CAPTURE_MAIN_SOURCE_MAC_QTKIT_VIDEO_CAPTURE_QTKIT_INFO_H_