Replace the existing SpdyHeaderBlock typedef with a class.

net/tools/quic/quic_spdy_client_stream.cc

 // Copyright (c) 2012 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.
 
 #include "net/tools/quic/quic_spdy_client_stream.h"
 
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "net/quic/spdy_utils.h"
@@ skipping 75 matching lines @@
                                                &response_headers_);
   DCHECK_LE(len, data_len);
   if (len == 0 || response_headers_.empty()) {
     return false;  // Headers were invalid.
   }
 
   if (data_len > len) {
     data_.append(data + len, data_len - len);
   }
   if (ContainsKey(response_headers_, "content-length") &&
-      !StringToInt(response_headers_["content-length"], &content_length_)) {
+      !StringToInt(StringPiece(response_headers_["content-length"]),
+                   &content_length_)) {
     return false;  // Invalid content-length.
   }
-  string status = response_headers_[":status"];
+  string status = response_headers_[":status"].as_string();
   size_t end = status.find(" ");
   if (end != string::npos) {
     status.erase(end);
   }
   if (!StringToInt(status, &response_code_)) {
     return false;  // Invalid response code.
   }
   return true;
 }
 
@@ skipping 18 matching lines @@
 }
 
 void QuicSpdyClientStream::SendBody(
     const string& data, bool fin,
     QuicAckNotifier::DelegateInterface* delegate) {
   WriteOrBufferData(data, fin, delegate);
 }
 
 }  // namespace tools
 }  // namespace net