Upstream changes to HttpUrlRequest for querying response headers and closing ReadableByteChannel.

components/cronet/android/url_request_peer.cc

 // Copyright 2014 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 "url_request_peer.h"
 
 #include "base/strings/string_number_conversions.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_status_code.h"
 
@@ skipping 52 matching lines @@
 
   context_->GetNetworkTaskRunner()->PostTask(
       FROM_HERE,
       base::Bind(&URLRequestPeer::OnAppendChunk,
                  base::Unretained(this),
                  bytes,
                  bytes_len,
                  is_last_chunk));
 }
 
+
+std::string URLRequestPeer::GetHeader(const std::string &name) const {
+  std::string value;
+  if (url_request_ != NULL) {
+    url_request_->GetResponseHeaderByName(name, &value);
+  }
+  return value;
+}
+
 void URLRequestPeer::Start() {
   context_->GetNetworkTaskRunner()->PostTask(
       FROM_HERE,
       base::Bind(&URLRequestPeer::OnInitiateConnection,
                  base::Unretained(this)));
 }
 
 void URLRequestPeer::OnAppendChunk(const char* bytes,
                                    int bytes_len,
                                    bool is_last_chunk) {
@@ skipping 192 matching lines @@
 
   delegate_->OnBytesRead(this);
   delegate_->OnRequestFinished(this);
 }
 
 unsigned char* URLRequestPeer::Data() const {
   return reinterpret_cast<unsigned char*>(read_buffer_->StartOfBuffer());
 }
 
 }  // namespace cronet