[Net] Propagate priority changes from HttpNetworkTransaction to its request

net/http/http_stream_factory_impl_job.h

 // 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.
 
 #ifndef NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_H_
 #define NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 56 matching lines @@
   void WaitFor(Job* job);
 
   // Tells |this| that |job| has determined it still needs to continue
   // connecting, so allow |this| to continue. If this is not called, then
   // |request_| is expected to cancel |this| by deleting it.
   void Resume(Job* job);
 
   // Used to detach the Job from |request|.
   void Orphan(const Request* request);
 
+  void SetPriority(RequestPriority priority);
+
+  RequestPriority priority() const { return priority_; }
   bool was_npn_negotiated() const;
   NextProto protocol_negotiated() const;
   bool using_spdy() const;
   const BoundNetLog& net_log() const { return net_log_; }
 
   const SSLConfig& server_ssl_config() const;
   const SSLConfig& proxy_ssl_config() const;
   const ProxyInfo& proxy_info() const;
 
   // Indicates whether or not this job is performing a preconnect.
@@ skipping 235 matching lines @@
   bool existing_available_pipeline_;
 
   base::WeakPtrFactory<Job> ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Job);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_H_