Small cleanups to ported QuicServer and dependencies

net/quic/quic_spdy_server_stream.cc

Index: net/quic/quic_spdy_server_stream.cc
diff --git a/net/quic/quic_spdy_server_stream.cc b/net/quic/quic_spdy_server_stream.cc
index bc67bb96662836ea1e8b1800fcdfadb6f6728ef4..c5b582b5faaee2e31856d0e79b5400463bdb105b 100644
--- a/net/quic/quic_spdy_server_stream.cc
+++ b/net/quic/quic_spdy_server_stream.cc
@@ -32,6 +32,10 @@ QuicSpdyServerStream::~QuicSpdyServerStream() {
 }
 
 uint32 QuicSpdyServerStream::ProcessData(const char* data, uint32 data_len) {
+  if (data_len > INT_MAX) {
+    LOG(DFATAL) << "Data length too long: " << data_len;
+    return 0;
+  }
   // Are we still reading the request headers.
   if (!request_headers_received_) {
     // Grow the read buffer if necessary.
@@ -77,12 +81,12 @@ void QuicSpdyServerStream::OnFinRead() {
 // there's more data.
 void QuicSpdyServerStream::ParseRequestHeaders() {
   SpdyFramer framer((kDefaultSpdyMajorVersion));
-  char* data = read_buf_->StartOfBuffer();
+  const char* data = read_buf_->StartOfBuffer();
   size_t read_buf_len = static_cast<size_t>(read_buf_->offset());
   size_t len = framer.ParseHeaderBlockInBuffer(data, read_buf_len, &headers_);
   if (len == 0) {
     // Not enough data yet, presumably. (If we still don't succeed by the end of
-    // the stream, then we'll error above.)
+    // the stream, then we'll error in OnFinRead().)
     return;
   }
 
@@ -125,7 +129,7 @@ void QuicSpdyServerStream::SendResponse() {
   }
 
   DVLOG(1) << "Sending response for stream " << id();
-  SendHeadersAndBody(response->headers(), response->body());
+  SendHeadersAndBody(*response->headers(), response->body());
 }
 
 void QuicSpdyServerStream::SendErrorResponse() {