Ensure WeakPtrFactories are at the end of their owning classes and refer

components/webdata/common/web_database_service.h

Index: components/webdata/common/web_database_service.h
===================================================================
--- components/webdata/common/web_database_service.h	(revision 242728)
+++ components/webdata/common/web_database_service.h	(working copy)
@@ -135,9 +135,6 @@
   // PostTask on DB thread may outlive us.
   scoped_refptr<WebDataServiceBackend> wds_backend_;
 
-  // All vended weak pointers are invalidated in ShutdownDatabase().
-  base::WeakPtrFactory<WebDatabaseService> weak_ptr_factory_;
-
   // Callbacks to be called once the DB has loaded.
   LoadedCallbacks loaded_callbacks_;
 
@@ -149,6 +146,9 @@
 
   scoped_refptr<base::MessageLoopProxy> db_thread_;
 
+  // All vended weak pointers are invalidated in ShutdownDatabase().
+  base::WeakPtrFactory<WebDatabaseService> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(WebDatabaseService);
 };