Pull HTTP/2 header parsing into utility method, from QuicSpdy{Client,Server}Streams. Not used in pr…

net/quic/spdy_utils.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_QUIC_SPDY_UTILS_H_
 #define NET_QUIC_SPDY_UTILS_H_
 
+#include <map>
 #include <string>
 
 #include "net/base/net_export.h"
 #include "net/quic/quic_protocol.h"
 #include "net/spdy/spdy_framer.h"
 
 namespace net {
 
 class NET_EXPORT_PRIVATE SpdyUtils {
  public:
   static std::string SerializeUncompressedHeaders(
       const SpdyHeaderBlock& headers);
 
+  // Parses |data| as a std::string containing serialized HTTP/2 HEADERS frame,
+  // populating |headers| with the key->value std:pairs found.
+  // |content_length| will be populated with the value of the content-length
+  // header if one or more are present.
+  // Returns true on success, false if parsing fails, or invalid keys are found.
+  static bool ParseHeaders(const char* data,
+                           uint32 data_len,
+                           int* content_length,
+                           SpdyHeaderBlock* headers);
+
  private:
   DISALLOW_COPY_AND_ASSIGN(SpdyUtils);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_SPDY_UTILS_H_