Delete unused and almost unused frame-related methods.

webrtc/sdk/objc/Framework/Classes/RTCVideoFrame.mm

 /*
  *  Copyright 2015 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.
  */
 
@@ skipping 22 matching lines @@
 }
 
 - (size_t)chromaHeight {
   return (self.height + 1) / 2;
 }
 
 - (const uint8_t *)yPlane {
   if (!self.i420Buffer) {
     return nullptr;
   }
-  return self.i420Buffer->data(webrtc::kYPlane);
+  return self.i420Buffer->DataY();
 }
 
 - (const uint8_t *)uPlane {
   if (!self.i420Buffer) {
     return nullptr;
   }
-  return self.i420Buffer->data(webrtc::kUPlane);
+  return self.i420Buffer->DataU();
 }
 
 - (const uint8_t *)vPlane {
   if (!self.i420Buffer) {
     return nullptr;
   }
-  return self.i420Buffer->data(webrtc::kVPlane);
+  return self.i420Buffer->DataV();
 }
 
 - (int32_t)yPitch {
   if (!self.i420Buffer) {
     return 0;
   }
-  return self.i420Buffer->stride(webrtc::kYPlane);
+  return self.i420Buffer->StrideY();
 }
 
 - (int32_t)uPitch {
   if (!self.i420Buffer) {
     return 0;
   }
-  return self.i420Buffer->stride(webrtc::kUPlane);
+  return self.i420Buffer->StrideU();
 }
 
 - (int32_t)vPitch {
   if (!self.i420Buffer) {
     return 0;
   }
-  return self.i420Buffer->stride(webrtc::kVPlane);
+  return self.i420Buffer->StrideV();
 }
 
 - (int64_t)timeStamp {
   return _videoFrame->GetTimeStamp();
 }
 
 - (CVPixelBufferRef)nativeHandle {
   return static_cast<CVPixelBufferRef>(
       _videoFrame->video_frame_buffer()->native_handle());
 }
@@ skipping 20 matching lines @@
   }
   return self;
 }
 
 - (rtc::scoped_refptr<webrtc::VideoFrameBuffer>)i420Buffer {
   [self convertBufferIfNeeded];
   return _i420Buffer;
 }
 
 @end