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

webkit/appcache/appcache_group.cc

Index: webkit/appcache/appcache_group.cc
diff --git a/webkit/appcache/appcache_group.cc b/webkit/appcache/appcache_group.cc
index 0f9b4affc9af0ead35a26b105023be3f1c16a20a..ddfb2663a225aacc82e85860259f63c9da502d66 100644
--- a/webkit/appcache/appcache_group.cc
+++ b/webkit/appcache/appcache_group.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -264,4 +264,9 @@ void AppCacheGroup::SetUpdateStatus(UpdateStatus status) {
   }
 }
 
+void AppCacheGroup::NotifyContentBlocked() {
+  FOR_EACH_OBSERVER(
+      UpdateObserver, observers_, OnContentBlocked(this));
+}
+
 }  // namespace appcache