[Net] Add a priority parameter to URLRequest's constructor

net/url_request/url_request_context.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.
 
 // This class represents contextual information (cookies, cache, etc.)
 // that's useful when processing resource requests.
 // The class is reference-counted so that it can be cleaned up after any
 // requests that are using it have been completed.
 
 #ifndef NET_URL_REQUEST_URL_REQUEST_CONTEXT_H_
 #define NET_URL_REQUEST_URL_REQUEST_CONTEXT_H_
 
 #include <set>
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/non_thread_safe.h"
 #include "net/base/net_export.h"
 #include "net/base/net_log.h"
+#include "net/base/request_priority.h"
 #include "net/http/http_network_session.h"
 #include "net/http/http_server_properties.h"
 #include "net/http/transport_security_state.h"
 #include "net/ssl/ssl_config_service.h"
 #include "net/url_request/url_request.h"
 
 namespace net {
 class CertVerifier;
 class CookieStore;
 class FraudulentCertificateReporter;
@@ skipping 17 matching lines @@
  public:
   URLRequestContext();
   virtual ~URLRequestContext();
 
   // Copies the state from |other| into this context.
   void CopyFrom(const URLRequestContext* other);
 
   // May return NULL if this context doesn't have an associated network session.
   const HttpNetworkSession::Params* GetNetworkSessionParams() const;
 
-  URLRequest* CreateRequest(
-      const GURL& url, URLRequest::Delegate* delegate) const;
+  scoped_ptr<URLRequest> CreateRequest(const GURL& url,
+                                       RequestPriority priority,
+                                       URLRequest::Delegate* delegate) const;
 
   NetLog* net_log() const {
     return net_log_;
   }
 
   void set_net_log(NetLog* net_log) {
     net_log_ = net_log;
   }
 
   HostResolver* host_resolver() const {
@@ skipping 159 matching lines @@
   // ---------------------------------------------------------------------------
 
   scoped_ptr<std::set<const URLRequest*> > url_requests_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestContext);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_CONTEXT_H_