[Net] Propagate priority changes from URLRequest to HttpTransaction

net/url_request/url_request.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_URL_REQUEST_URL_REQUEST_H_
 #define NET_URL_REQUEST_URL_REQUEST_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 597 matching lines @@
   // Used to specify the context (cookie store, cache) for this request.
   const URLRequestContext* context() const;
 
   const BoundNetLog& net_log() const { return net_log_; }
 
   // Returns the expected content size if available
   int64 GetExpectedContentSize() const;
 
   // Returns the priority level for this request.
   RequestPriority priority() const { return priority_; }
-  void set_priority(RequestPriority priority) {
-    DCHECK_GE(priority, MINIMUM_PRIORITY);
-    DCHECK_LT(priority, NUM_PRIORITIES);
-    priority_ = priority;
-  }
+
+  // Sets the priority level for this request and any related jobs.
+  void SetPriority(RequestPriority priority);
 
   // Returns true iff this request would be internally redirected to HTTPS
   // due to HSTS. If so, |redirect_url| is rewritten to the new HTTPS URL.
   bool GetHSTSRedirect(GURL* redirect_url) const;
 
   // TODO(willchan): Undo this. Only temporarily public.
   bool has_delegate() const { return delegate_ != NULL; }
 
   // NOTE(willchan): This is just temporary for debugging
   // http://crbug.com/90971.
@@ skipping 207 matching lines @@
   LoadTimingInfo load_timing_info_;
 
   scoped_ptr<const base::debug::StackTrace> stack_trace_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequest);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_H_