Bug 1766646 - Vendor libwebrtc from a782022d6c

Upstream commit: https://webrtc.googlesource.com/src/+/a782022d6ccd7b098881a3d3b1da1dad703e0045
    Use rtc::CopyOnWriteBuffer::MutableData instead of data in fuzzers

    Bug: webrtc:12334
    Change-Id: I3df42998f5cf5c3b09ad3f6253cab34170d725bf
    Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/201380
    Reviewed-by: Niels Moller <[email protected]>
    Commit-Queue: Danil Chapovalov <[email protected]>
    Cr-Commit-Position: refs/heads/master@{#32947}

third_party/libwebrtc/README.moz-ff-commit

@@ -2379,3 +2379,6 @@ b2460f2f3c
 # MOZ_LIBWEBRTC_SRC=/home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwebrtc-checkout/src MOZ_LIBWEBRTC_COMMIT=mjfdev bash dom/media/webrtc/third_party_build/fast-forward-libwebrtc.sh
 # base of lastest vendoring
 a68bfc5537
+# MOZ_LIBWEBRTC_SRC=/home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwebrtc-checkout/src MOZ_LIBWEBRTC_COMMIT=mjfdev bash dom/media/webrtc/third_party_build/fast-forward-libwebrtc.sh
+# base of lastest vendoring
+a782022d6c

third_party/libwebrtc/README.mozilla

@@ -1588,3 +1588,5 @@ libwebrtc updated from /home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwe
 libwebrtc updated from /home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwebrtc-checkout/src commit mjfdev on 2022-04-27T18:59:12.043368.
 # python3 vendor-libwebrtc.py --from-local /home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwebrtc-checkout/src --commit mjfdev libwebrtc
 libwebrtc updated from /home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwebrtc-checkout/src commit mjfdev on 2022-04-27T19:00:06.874195.
+# python3 vendor-libwebrtc.py --from-local /home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwebrtc-checkout/src --commit mjfdev libwebrtc
+libwebrtc updated from /home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwebrtc-checkout/src commit mjfdev on 2022-04-27T19:01:07.241623.

third_party/libwebrtc/test/fuzzers/flexfec_header_reader_fuzzer.cc

@@ -27,7 +27,7 @@ void FuzzOneInput(const uint8_t* data, size_t size) {
       std::min(size, static_cast<size_t>(IP_PACKET_SIZE));
   packet.pkt->data.SetSize(packet_size);
   packet.pkt->data.EnsureCapacity(IP_PACKET_SIZE);
-  memcpy(packet.pkt->data.data(), data, packet_size);
+  memcpy(packet.pkt->data.MutableData(), data, packet_size);
 
   FlexfecHeaderReader flexfec_reader;
   flexfec_reader.ReadFecHeader(&packet);

third_party/libwebrtc/test/fuzzers/forward_error_correction_fuzzer.cc

@@ -57,7 +57,7 @@ void FuzzOneInput(const uint8_t* data, size_t size) {
     recovered_packet->pkt = rtc::scoped_refptr<ForwardErrorCorrection::Packet>(
         new ForwardErrorCorrection::Packet());
     recovered_packet->pkt->data.SetSize(kPacketSize);
-    memset(recovered_packet->pkt->data.data(), 0, kPacketSize);
+    memset(recovered_packet->pkt->data.MutableData(), 0, kPacketSize);
     recovered_packet->ssrc = kMediaSsrc;
     recovered_packet->seq_num = media_seqnum++;
     recovered_packets.emplace_back(recovered_packet);
@@ -69,7 +69,7 @@ void FuzzOneInput(const uint8_t* data, size_t size) {
       new ForwardErrorCorrection::Packet());
   received_packet.pkt->data.SetSize(kPacketSize);
   received_packet.pkt->data.EnsureCapacity(IP_PACKET_SIZE);
-  uint8_t* packet_buffer = received_packet.pkt->data.data();
+  uint8_t* packet_buffer = received_packet.pkt->data.MutableData();
   uint8_t reordering;
   uint16_t seq_num_diff;
   uint8_t packet_type;

third_party/libwebrtc/test/fuzzers/ulpfec_generator_fuzzer.cc

@@ -45,9 +45,9 @@ void FuzzOneInput(const uint8_t* data, size_t size) {
     packet.EnsureCapacity(IP_PACKET_SIZE);
     // Write a valid parsable header (version = 2, no padding, no extensions,
     // no CSRCs).
-    ByteWriter<uint8_t>::WriteBigEndian(&packet[0], 2 << 6);
+    ByteWriter<uint8_t>::WriteBigEndian(packet.MutableData(), 2 << 6);
     // Make sure sequence numbers are increasing.
-    ByteWriter<uint16_t>::WriteBigEndian(&packet[2], seq_num++);
+    ByteWriter<uint16_t>::WriteBigEndian(packet.MutableData() + 2, seq_num++);
     i += payload_size + rtp_header_length;
     const bool protect = data[i++] % 2 == 1;
 

third_party/libwebrtc/test/fuzzers/ulpfec_header_reader_fuzzer.cc

@@ -27,7 +27,7 @@ void FuzzOneInput(const uint8_t* data, size_t size) {
       std::min(size, static_cast<size_t>(IP_PACKET_SIZE));
   packet.pkt->data.SetSize(packet_size);
   packet.pkt->data.EnsureCapacity(IP_PACKET_SIZE);
-  memcpy(packet.pkt->data.data(), data, packet_size);
+  memcpy(packet.pkt->data.MutableData(), data, packet_size);
 
   UlpfecHeaderReader ulpfec_reader;
   ulpfec_reader.ReadFecHeader(&packet);