Split ByteBuffer into writer/reader objects.

webrtc/media/base/rtpdump_unittest.cc

Index: webrtc/media/base/rtpdump_unittest.cc
diff --git a/webrtc/media/base/rtpdump_unittest.cc b/webrtc/media/base/rtpdump_unittest.cc
index a5b79c9e946f9079232ad2ff89efb24db8960b80..748ceab120069f1751f5b329c4bda56ea72f9f40 100644
--- a/webrtc/media/base/rtpdump_unittest.cc
+++ b/webrtc/media/base/rtpdump_unittest.cc
@@ -24,7 +24,7 @@ static const uint32_t kTestSsrc = 1;
 
 // Test that we read the correct header fields from the RTP/RTCP packet.
 TEST(RtpDumpTest, ReadRtpDumpPacket) {
-  rtc::ByteBuffer rtp_buf;
+  rtc::ByteBufferWriter rtp_buf;
   RtpTestUtility::kTestRawRtpPackets[0].WriteToByteBuffer(kTestSsrc, &rtp_buf);
   RtpDumpPacket rtp_packet(rtp_buf.Data(), rtp_buf.Length(), 0, false);
 
@@ -46,7 +46,7 @@ TEST(RtpDumpTest, ReadRtpDumpPacket) {
   EXPECT_EQ(kTestSsrc, ssrc);
   EXPECT_FALSE(rtp_packet.GetRtcpType(&rtcp_type));
 
-  rtc::ByteBuffer rtcp_buf;
+  rtc::ByteBufferWriter rtcp_buf;
   RtpTestUtility::kTestRawRtcpPackets[0].WriteToByteBuffer(&rtcp_buf);
   RtpDumpPacket rtcp_packet(rtcp_buf.Data(), rtcp_buf.Length(), 0, true);