Indicate in the tab UI if appcache creation was blocked by privacy settings.

webkit/appcache/appcache_group.h

 // Copyright (c) 2010 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 WEBKIT_APPCACHE_APPCACHE_GROUP_H_
 #define WEBKIT_APPCACHE_APPCACHE_GROUP_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 12 matching lines @@
 class AppCacheUpdateJob;
 class HostObserver;
 
 // Collection of application caches identified by the same manifest URL.
 // A group exists as long as it is in use by a host or is being updated.
 class AppCacheGroup : public base::RefCounted<AppCacheGroup> {
  public:
 
   class UpdateObserver {
     public:
+      // Called if access to the appcache was blocked by a policy.
+      virtual void OnContentBlocked(AppCacheGroup* group) = 0;
+
       // Called just after an appcache update has completed.
       virtual void OnUpdateComplete(AppCacheGroup* group) = 0;
-      virtual ~UpdateObserver() { }
+      virtual ~UpdateObserver() {}
   };
 
   enum UpdateStatus {
     IDLE,
     CHECKING,
     DOWNLOADING,
   };
 
   AppCacheGroup(AppCacheService* service, const GURL& manifest_url,
                 int64 group_id);
@@ skipping 52 matching lines @@
   ~AppCacheGroup();
 
   typedef std::vector<AppCache*> Caches;
   typedef std::map<AppCacheHost*, GURL> QueuedUpdates;
 
   static const int kUpdateRestartDelayMs = 1000;
 
   AppCacheUpdateJob* update_job() { return update_job_; }
   void SetUpdateStatus(UpdateStatus status);
 
+  void NotifyContentBlocked();
+
   const Caches& old_caches() const { return old_caches_; }
 
   // Update cannot be processed at this time. Queue it for a later run.
   void QueueUpdate(AppCacheHost* host, const GURL& new_master_resource);
   void RunQueuedUpdates();
   bool FindObserver(UpdateObserver* find_me,
                     const ObserverList<UpdateObserver>& observer_list);
   void ScheduleUpdateRestart(int delay_ms);
   void HostDestructionImminent(AppCacheHost* host);
 
@@ skipping 32 matching lines @@
   FRIEND_TEST(AppCacheGroupTest, CancelUpdate);
   FRIEND_TEST(AppCacheGroupTest, QueueUpdate);
   FRIEND_TEST(AppCacheUpdateJobTest, AlreadyChecking);
   FRIEND_TEST(AppCacheUpdateJobTest, AlreadyDownloading);
   DISALLOW_COPY_AND_ASSIGN(AppCacheGroup);
 };
 
 }  // namespace appcache
 
 #endif  // WEBKIT_APPCACHE_APPCACHE_GROUP_H_