Disallow multiple HEADERS frames on pushed streams.

net/spdy/spdy_proxy_client_socket.cc

Index: net/spdy/spdy_proxy_client_socket.cc
diff --git a/net/spdy/spdy_proxy_client_socket.cc b/net/spdy/spdy_proxy_client_socket.cc
index ea771b3cf82aea048e7752e2a2e6425783d959e3..c19144611eb494ca88ac6f6311812ec33e94afe3 100644
--- a/net/spdy/spdy_proxy_client_socket.cc
+++ b/net/spdy/spdy_proxy_client_socket.cc
@@ -430,26 +430,26 @@ int SpdyProxyClientSocket::DoReadReplyComplete(int result) {
 // SpdyStream::Delegate methods:
 // Called when SYN frame has been sent.
 // Returns true if no more data to be sent after SYN frame.
-void SpdyProxyClientSocket::OnRequestHeadersSent() {
+void SpdyProxyClientSocket::OnHeadersSent() {
   DCHECK_EQ(next_state_, STATE_SEND_REQUEST_COMPLETE);
 
   OnIOComplete(OK);
 }
 
-SpdyResponseHeadersStatus SpdyProxyClientSocket::OnResponseHeadersUpdated(
+void SpdyProxyClientSocket::OnHeadersReceived(
     const SpdyHeaderBlock& response_headers) {
   // If we've already received the reply, existing headers are too late.
   // TODO(mbelshe): figure out a way to make HEADERS frames useful after the
   //                initial response.
   if (next_state_ != STATE_READ_REPLY_COMPLETE)
-    return RESPONSE_HEADERS_ARE_COMPLETE;
+    return;
 
   // Save the response
-  if (!SpdyHeadersToHttpResponse(response_headers, &response_))
-    return RESPONSE_HEADERS_ARE_INCOMPLETE;
+  const bool headers_valid =
+      SpdyHeadersToHttpResponse(response_headers, &response_);
+  DCHECK(headers_valid);
 
   OnIOComplete(OK);
-  return RESPONSE_HEADERS_ARE_COMPLETE;
 }
 
 // Called when data is received or on EOF (if |buffer| is NULL).