Implement offline mode behind a flag

content/browser/loader/resource_dispatcher_host_impl.h

Index: content/browser/loader/resource_dispatcher_host_impl.h
diff --git a/content/browser/loader/resource_dispatcher_host_impl.h b/content/browser/loader/resource_dispatcher_host_impl.h
index 5dc36e643526406d43167a57b5fa4ce32b0ae6e0..b459ec82ad94662edd9f751873d51fab09f03039 100644
--- a/content/browser/loader/resource_dispatcher_host_impl.h
+++ b/content/browser/loader/resource_dispatcher_host_impl.h
@@ -25,6 +25,8 @@
 #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"
@@ -32,6 +34,7 @@
 #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"
@@ -60,7 +63,6 @@ class ResourceRequestInfoImpl;
 class SaveFileManager;
 class WebContentsImpl;
 struct DownloadSaveInfo;
-struct GlobalRequestID;
 struct Referrer;
 
 class CONTENT_EXPORT ResourceDispatcherHostImpl
@@ -409,8 +411,7 @@ class CONTENT_EXPORT ResourceDispatcherHostImpl
   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
@@ -452,6 +453,10 @@ class CONTENT_EXPORT ResourceDispatcherHostImpl
 
   RenderViewHostTracker tracker_;  // Lives on UI thread.
 
+  typedef std::map<GlobalRoutingID, OfflinePolicy*> OfflineMap;
+
+  OfflineMap offline_policy_map_;
+
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcherHostImpl);
 };