Unify the macOS and iOS capturer implementations

webrtc/modules/video_capture/objc/device_info_objc.mm

 /*
  *  Copyright (c) 2013 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.
  */
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 #import <AVFoundation/AVFoundation.h>
 
-#import "webrtc/modules/video_capture/ios/device_info_ios_objc.h"
+#import "webrtc/modules/video_capture/objc/device_info_objc.h"
 #include "webrtc/modules/video_capture/video_capture_config.h"
 
 @implementation DeviceInfoIosObjC
 
 + (int)captureDeviceCount {
   return [[AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo] count];
 }
 
 + (AVCaptureDevice*)captureDeviceForIndex:(int)index {
   return [[AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo]
@@ skipping 48 matching lines @@
     capability.interlaced = false;
   } else if ([preset isEqualToString:AVCaptureSessionPreset1280x720]) {
     capability.width = 1280;
     capability.height = 720;
     capability.maxFPS = 30;
     capability.expectedCaptureDelay =
         webrtc::videocapturemodule::kDefaultCaptureDelay;
     capability.rawType = webrtc::kVideoNV12;
     capability.codecType = webrtc::kVideoCodecUnknown;
     capability.interlaced = false;
-  } else if ([preset isEqualToString:AVCaptureSessionPreset1920x1080]) {
-    capability.width = 1920;
-    capability.height = 1080;
-    capability.maxFPS = 30;
-    capability.expectedCaptureDelay =
-        webrtc::videocapturemodule::kDefaultCaptureDelay;
-    capability.rawType = webrtc::kVideoNV12;
-    capability.codecType = webrtc::kVideoCodecUnknown;
-    capability.interlaced = false;
   }
 
   return capability;
 }
 
 @end