RtpPacket::payload() return rtc::ArrayView instead of raw pointer

webrtc/modules/rtp_rtcp/source/rtp_packet.cc

 /*
  *  Copyright (c) 2016 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 154 matching lines @@
 }
 
 size_t Packet::payload_size() const {
   return payload_size_;
 }
 
 size_t Packet::padding_size() const {
   return padding_size_;
 }
 
-const uint8_t* Packet::payload() const {
-  return data() + payload_offset_;
+rtc::ArrayView<const uint8_t> Packet::payload() const {
+  return rtc::MakeArrayView(data() + payload_offset_, payload_size_);
 }
 
 rtc::CopyOnWriteBuffer Packet::Buffer() const {
   return buffer_;
 }
 
 size_t Packet::capacity() const {
   return buffer_.capacity();
 }
 
@@ skipping 338 matching lines @@
 uint8_t* Packet::WriteAt(size_t offset) {
   return buffer_.data() + offset;
 }
 
 void Packet::WriteAt(size_t offset, uint8_t byte) {
   buffer_.data()[offset] = byte;
 }
 
 }  // namespace rtp
 }  // namespace webrtc