Remove refptr usages from SpellCheckHost

chrome/browser/spellchecker/spellcheck_host_impl.h

Index: chrome/browser/spellchecker/spellcheck_host_impl.h
diff --git a/chrome/browser/spellchecker/spellcheck_host_impl.h b/chrome/browser/spellchecker/spellcheck_host_impl.h
index 6ec5ec4c227b401e8525c02819e0105778d34333..36ab9c5d406546a90150b274804c3c4b2f6261c5 100644
--- a/chrome/browser/spellchecker/spellcheck_host_impl.h
+++ b/chrome/browser/spellchecker/spellcheck_host_impl.h
@@ -46,6 +46,8 @@ class SpellCheckHostImpl : public SpellCheckHost,
                      net::URLRequestContextGetter* request_context_getter,
                      SpellCheckHostMetrics* metrics);
 
+  virtual ~SpellCheckHostImpl();
+
   void Initialize();
 
   // SpellCheckHost implementation
@@ -63,8 +65,6 @@ class SpellCheckHostImpl : public SpellCheckHost,
   friend class BrowserThread;
   friend class DeleteTask<SpellCheckHostImpl>;
 
-  virtual ~SpellCheckHostImpl();
-
   // Figure out the location for the dictionary. This is only non-trivial for
   // Windows:
   // The default place whether the spellcheck dictionary can reside is
@@ -161,6 +161,8 @@ class SpellCheckHostImpl : public SpellCheckHost,
   // An optional metrics counter given by the constructor.
   SpellCheckHostMetrics* metrics_;
 
+  ScopedRunnableMethodFactory<SpellCheckHostImpl> service_task_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(SpellCheckHostImpl);
 };