Cache total_delayable_count for in_flight_requests in ResourceScheduler

content/browser/loader/resource_scheduler.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 CONTENT_BROWSER_LOADER_RESOURCE_SCHEDULER_H_
 #define CONTENT_BROWSER_LOADER_RESOURCE_SCHEDULER_H_
 
 #include <map>
 #include <set>
 
@@ skipping 94 matching lines @@
   // Queues are maintained for each priority level. When |request| is
   // reprioritized, it will move to the end of the queue for that priority
   // level.
   void ReprioritizeRequest(ScheduledResourceRequest* request,
                            net::RequestPriority new_priority);
 
   // Attempts to load any pending requests in |client|, based on the
   // results of ShouldStartRequest().
   void LoadAnyStartablePendingRequests(Client* client);
 
-  // Returns the number of requests with priority < LOW that are currently in
+  // Returns the number of requests with same host that are currently in
   // flight.
-  void GetNumDelayableRequestsInFlight(
+  size_t GetNumSameHostRequestsInFlight(
       Client* client,
-      const net::HostPortPair& active_request_host,
-      size_t* total_delayable,
-      size_t* total_for_active_host) const;
+      const net::HostPortPair& active_request_host) const;
 
   enum ShouldStartReqResult {
     DO_NOT_START_REQUEST_AND_STOP_SEARCHING = -2,
     DO_NOT_START_REQUEST_AND_KEEP_SEARCHING = -1,
     START_REQUEST = 1,
   };
 
   // Returns true if the request should start. This is the core scheduling
   // algorithm.
   ShouldStartReqResult ShouldStartRequest(ScheduledResourceRequest* request,
                                           Client* client) const;
 
   // Returns the client ID for the given |child_id| and |route_id| combo.
   ClientId MakeClientId(int child_id, int route_id);
 
   ClientMap client_map_;
   RequestSet unowned_requests_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_RESOURCE_SCHEDULER_H_