Move some SpdyHeaderBlock instances from heap to stack.

net/spdy/spdy_proxy_client_socket.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/spdy/spdy_proxy_client_socket.h"
 
 #include <algorithm>  // min
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 346 matching lines @@
 
   std::string request_line;
   BuildTunnelRequest(endpoint_, authorization_headers, user_agent_,
                      &request_line, &request_.extra_headers);
 
   net_log_.AddEvent(
       NetLog::TYPE_HTTP_TRANSACTION_SEND_TUNNEL_HEADERS,
       base::Bind(&HttpRequestHeaders::NetLogCallback,
                  base::Unretained(&request_.extra_headers), &request_line));
 
-  std::unique_ptr<SpdyHeaderBlock> headers(new SpdyHeaderBlock());
+  SpdyHeaderBlock headers;
   CreateSpdyHeadersFromHttpRequest(request_, request_.extra_headers, true,
-                                   headers.get());
+                                   &headers);
 
   return spdy_stream_->SendRequestHeaders(std::move(headers),
                                           MORE_DATA_TO_SEND);
 }
 
 int SpdyProxyClientSocket::DoSendRequestComplete(int result) {
   if (result < 0)
     return result;
 
   // Wait for SYN_REPLY frame from the server
@@ skipping 144 matching lines @@
   } else if (!read_callback_.is_null()) {
     // If we have a read_callback_, the we need to make sure we call it back.
     OnDataReceived(std::unique_ptr<SpdyBuffer>());
   }
   // This may have been deleted by read_callback_, so check first.
   if (weak_ptr.get() && !write_callback.is_null())
     write_callback.Run(ERR_CONNECTION_CLOSED);
 }
 
 }  // namespace net