Move some SpdyHeaderBlock instances from heap to stack.

net/spdy/spdy_http_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/spdy/spdy_http_stream.h"
 
 #include <algorithm>
 #include <list>
 #include <utility>
 
@@ skipping 256 matching lines @@
   if (stream_->type() == SPDY_PUSH_STREAM) {
     // Pushed streams do not send any data, and should always be
     // idle. However, we still want to return ERR_IO_PENDING to mimic
     // non-push behavior. The callback will be called when the
     // response is received.
     CHECK(response_callback_.is_null());
     response_callback_ = callback;
     return ERR_IO_PENDING;
   }
 
-  std::unique_ptr<SpdyHeaderBlock> headers(new SpdyHeaderBlock);
+  SpdyHeaderBlock headers;
   CreateSpdyHeadersFromHttpRequest(*request_info_, request_headers, direct_,
-                                   headers.get());
+                                   &headers);
   stream_->net_log().AddEvent(
       NetLog::TYPE_HTTP_TRANSACTION_HTTP2_SEND_REQUEST_HEADERS,
-      base::Bind(&SpdyHeaderBlockNetLogCallback, headers.get()));
+      base::Bind(&SpdyHeaderBlockNetLogCallback, &headers));
   result = stream_->SendRequestHeaders(
       std::move(headers),
       HasUploadData() ? MORE_DATA_TO_SEND : NO_MORE_DATA_TO_SEND);
 
   if (result == ERR_IO_PENDING) {
     CHECK(request_callback_.is_null());
     request_callback_ = callback;
   }
   return result;
 }
@@ skipping 311 matching lines @@
   details->connection_info = HttpResponseInfo::CONNECTION_INFO_HTTP2;
   return;
 }
 
 void SpdyHttpStream::SetPriority(RequestPriority priority) {
   // TODO(akalin): Plumb this through to |stream_request_| and
   // |stream_|.
 }
 
 }  // namespace net