Read recv timestamps from socket (posix only).

webrtc/base/proxyserver.cc

Index: webrtc/base/proxyserver.cc
diff --git a/webrtc/base/proxyserver.cc b/webrtc/base/proxyserver.cc
index d91a92fbde8679556c5c5e3fa01bc40510253486..6a1bdcd0047483bbcae2c9b0fe15ce6a4334cd82 100644
--- a/webrtc/base/proxyserver.cc
+++ b/webrtc/base/proxyserver.cc
@@ -129,7 +129,7 @@ void ProxyBinding::Read(AsyncSocket* socket, FifoBuffer* buffer) {
   int read;
   if (buffer->GetBuffered(&size) && size == 0) {
     void* p = buffer->GetWriteBuffer(&size);
-    read = socket->Recv(p, size);
+    read = socket->Recv(p, size, nullptr);
     buffer->ConsumeWriteBuffer(std::max(read, 0));
   }
 }