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

components/cronet/android/url_request_peer.h

 // 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.
 
 #ifndef COMPONENTS_CRONET_ANDROID_URL_REQUEST_PEER_H_
 #define COMPONENTS_CRONET_ANDROID_URL_REQUEST_PEER_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ skipping 66 matching lines @@
   int http_status_code() const {
     return http_status_code_;
   };
 
   // Returns the value of the content-length response header.
   int64 content_length() const { return expected_size_; }
 
   // Returns the value of the content-type response header.
   std::string content_type() const { return content_type_; }
 
+  // Returns the value of the specified response header.
+  std::string GetHeader(const std::string& name) const;
+
   // Returns the overall number of bytes read.
   size_t bytes_read() const { return bytes_read_; }
 
   // Returns a pointer to the downloaded data.
   unsigned char* Data() const;
 
   virtual void OnResponseStarted(net::URLRequest* request) OVERRIDE;
 
   virtual void OnReadCompleted(net::URLRequest* request,
                                int bytes_read) OVERRIDE;
@@ skipping 29 matching lines @@
   void OnAppendChunk(const char* bytes, int bytes_len, bool is_last_chunk);
 
   void Read();
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestPeer);
 };
 
 }  // namespace cronet
 
 #endif  // COMPONENTS_CRONET_ANDROID_URL_REQUEST_PEER_H_