Delay resource scheduling decisions until network access.

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 <stddef.h>
 #include <stdint.h>
 
@@ skipping 145 matching lines @@
   struct ScheduledResourceSorter {
     bool operator()(const ScheduledResourceRequest* a,
                     const ScheduledResourceRequest* b) const;
   };
   class Client;
 
   typedef int64_t ClientId;
   typedef std::map<ClientId, Client*> ClientMap;
   typedef std::set<ScheduledResourceRequest*> RequestSet;
 
+  // Called when a ScheduledResourceRequest is about to be sent over the network
+  // to determine if it should be delayed or sent.
+  bool ShouldSendRequest(ScheduledResourceRequest* request);
+
   // Called when a ScheduledResourceRequest is destroyed.
   void RemoveRequest(ScheduledResourceRequest* request);
 
   // Returns the client ID for the given |child_id| and |route_id| combo.
   ClientId MakeClientId(int child_id, int route_id);
 
   // Returns the client for the given |child_id| and |route_id| combo.
   Client* GetClient(int child_id, int route_id);
 
   ClientMap client_map_;
   bool limit_outstanding_requests_;
   size_t outstanding_request_limit_;
   net::RequestPriority non_delayable_threshold_;
   bool enable_in_flight_non_delayable_threshold_;
   size_t in_flight_non_delayable_threshold_;
   size_t max_num_delayable_while_layout_blocking_;
   size_t max_num_delayable_requests_;
   RequestSet unowned_requests_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceScheduler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_RESOURCE_SCHEDULER_H_