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

webkit/appcache/appcache_frontend_impl.h

Index: webkit/appcache/appcache_frontend_impl.h
diff --git a/webkit/appcache/appcache_frontend_impl.h b/webkit/appcache/appcache_frontend_impl.h
index d0c0820068a39edc406d643687970de1186d9f7a..e8658a8311215e4bc37ca0990d4d2b136fc24238 100644
--- a/webkit/appcache/appcache_frontend_impl.h
+++ b/webkit/appcache/appcache_frontend_impl.h
@@ -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.
 
@@ -18,6 +18,7 @@ class AppCacheFrontendImpl : public AppCacheFrontend {
                                Status status);
   virtual void OnEventRaised(const std::vector<int>& host_ids,
                              EventID event_id);
+  virtual void OnContentBlocked(int host_id);
 };
 
 }  // namespace