Fix WeakPtrFactory member placement.

extensions/browser/guest_view/web_view/web_view_find_helper.h

Index: extensions/browser/guest_view/web_view/web_view_find_helper.h
diff --git a/extensions/browser/guest_view/web_view/web_view_find_helper.h b/extensions/browser/guest_view/web_view/web_view_find_helper.h
index 425b4401011ad7b18957b7039119ee7af0f0a311..db1c39d577ed18fa14239c67de852642bc45a981 100644
--- a/extensions/browser/guest_view/web_view/web_view_find_helper.h
+++ b/extensions/browser/guest_view/web_view/web_view_find_helper.h
@@ -155,12 +155,12 @@ class WebViewFindHelper {
     // request of a find session.
     std::vector<base::WeakPtr<FindInfo> > find_next_requests_;
 
-    // Weak pointer used to access the find info of fin.
-    base::WeakPtrFactory<FindInfo> weak_ptr_factory_;
-
     friend void WebViewFindHelper::EndFindSession(int session_request_id,
                                                   bool canceled);
 
+// Weak pointer used to access the find info of fin.
+    base::WeakPtrFactory<FindInfo> weak_ptr_factory_;
+
     DISALLOW_COPY_AND_ASSIGN(FindInfo);
   };