Implement offline mode behind a flag

content/browser/loader/resource_dispatcher_host_impl.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 is the browser side of the resource dispatcher, it receives requests
 // from the child process (i.e. [Renderer, Plugin, Worker]ProcessHost), and
 // dispatches them to URLRequests. It then forwards the messages from the
 // URLRequests back to the correct process for handling.
 //
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #ifndef CONTENT_BROWSER_LOADER_RESOURCE_DISPATCHER_HOST_IMPL_H_
 #define CONTENT_BROWSER_LOADER_RESOURCE_DISPATCHER_HOST_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "base/time.h"
 #include "base/timer.h"
 #include "content/browser/download/download_resource_handler.h"
+#include "content/browser/loader/global_routing_id.h"
+#include "content/browser/loader/offline_policy.h"
 #include "content/browser/loader/render_view_host_tracker.h"
 #include "content/browser/loader/resource_loader.h"
 #include "content/browser/loader/resource_loader_delegate.h"
 #include "content/browser/loader/resource_scheduler.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/child_process_data.h"
 #include "content/public/browser/download_id.h"
+#include "content/public/browser/global_request_id.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "ipc/ipc_message.h"
 #include "net/cookies/canonical_cookie.h"
 #include "net/url_request/url_request.h"
 #include "webkit/glue/resource_type.h"
 
 class ResourceHandler;
 struct ResourceHostMsg_Request;
 struct ViewMsg_SwapOut_Params;
 
 namespace net {
 class URLRequestJobFactory;
 }
 
 namespace webkit_blob {
 class ShareableFileReference;
 }
 
 namespace content {
 class ResourceContext;
 class ResourceDispatcherHostDelegate;
 class ResourceMessageDelegate;
 class ResourceMessageFilter;
 class ResourceRequestInfoImpl;
 class SaveFileManager;
 class WebContentsImpl;
 struct DownloadSaveInfo;
-struct GlobalRequestID;
 struct Referrer;
 
 class CONTENT_EXPORT ResourceDispatcherHostImpl
     : public ResourceDispatcherHost,
       public ResourceLoaderDelegate {
  public:
   ResourceDispatcherHostImpl();
   virtual ~ResourceDispatcherHostImpl();
 
   // Returns the current ResourceDispatcherHostImpl. May return NULL if it
@@ skipping 328 matching lines @@
   // used as a special value all over the resource_dispatcher_host for
   // uninitialized variables.) This way, we no longer have the unlikely (but
   // observed in the real world!) event where we have two requests with the same
   // request_id_.
   int request_id_;
 
   // True if the resource dispatcher host has been shut down.
   bool is_shutdown_;
 
   typedef std::vector<linked_ptr<ResourceLoader> > BlockedLoadersList;
-  typedef std::pair<int, int> ProcessRouteIDs;
-  typedef std::map<ProcessRouteIDs, BlockedLoadersList*> BlockedLoadersMap;
+  typedef std::map<GlobalRoutingID, BlockedLoadersList*> BlockedLoadersMap;
   BlockedLoadersMap blocked_loaders_map_;
 
   // Maps the child_ids to the approximate number of bytes
   // being used to service its resource requests. No entry implies 0 cost.
   typedef std::map<int, int> OutstandingRequestsMemoryCostMap;
   OutstandingRequestsMemoryCostMap outstanding_requests_memory_cost_map_;
 
   // |max_outstanding_requests_cost_per_process_| is the upper bound on how
   // many outstanding requests can be issued per child process host.
   // The constraint is expressed in terms of bytes (where the cost of
@@ skipping 21 matching lines @@
   std::set<const ResourceContext*> active_resource_contexts_;
 
   typedef std::map<GlobalRequestID,
                    ObserverList<ResourceMessageDelegate>*> DelegateMap;
   DelegateMap delegate_map_;
 
   scoped_ptr<ResourceScheduler> scheduler_;
 
   RenderViewHostTracker tracker_;  // Lives on UI thread.
 
+  typedef std::map<GlobalRoutingID, OfflinePolicy*> OfflineMap;
+
+  OfflineMap offline_policy_map_;
+
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcherHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_RESOURCE_DISPATCHER_HOST_IMPL_H_