Fixed CacheInvalidationPacketHandler crash.

chrome/browser/sync/notifier/cache_invalidation_packet_handler.h

Index: chrome/browser/sync/notifier/cache_invalidation_packet_handler.h
diff --git a/chrome/browser/sync/notifier/cache_invalidation_packet_handler.h b/chrome/browser/sync/notifier/cache_invalidation_packet_handler.h
index e3e89f2066065de5dfd50894f97b084bcf5c93ae..e96c897bdecedc9f924f814366b6cc3039e02125 100644
--- a/chrome/browser/sync/notifier/cache_invalidation_packet_handler.h
+++ b/chrome/browser/sync/notifier/cache_invalidation_packet_handler.h
@@ -12,6 +12,7 @@
 #include <string>
 
 #include "base/basictypes.h"
+#include "base/scoped_callback_factory.h"
 #include "talk/xmpp/jid.h"
 
 namespace buzz {
@@ -48,6 +49,9 @@ class CacheInvalidationPacketHandler {
 
   void HandleInboundPacket(const std::string& packet);
 
+  base::ScopedCallbackFactory<CacheInvalidationPacketHandler>
+      scoped_callback_factory_;
+
   buzz::XmppClient* xmpp_client_;
   invalidation::InvalidationClient* invalidation_client_;