win: Move HWNDMessageHandler's WeakPtrFactory member to the end.

ui/views/win/hwnd_message_handler.cc

Index: ui/views/win/hwnd_message_handler.cc
diff --git a/ui/views/win/hwnd_message_handler.cc b/ui/views/win/hwnd_message_handler.cc
index 995600689f5d528f1ab21c6fd9dcb34e466fa0ab..1259d6c933227e3d57dedde8b2cf8727404b8486 100644
--- a/ui/views/win/hwnd_message_handler.cc
+++ b/ui/views/win/hwnd_message_handler.cc
@@ -337,7 +337,6 @@ long HWNDMessageHandler::last_touch_message_time_ = 0;
 HWNDMessageHandler::HWNDMessageHandler(HWNDMessageHandlerDelegate* delegate)
     : delegate_(delegate),
       fullscreen_handler_(new FullscreenHandler),
-      weak_factory_(this),
       waiting_for_close_now_(false),
       remove_standard_frame_(false),
       use_system_default_icon_(false),
@@ -361,7 +360,8 @@ HWNDMessageHandler::HWNDMessageHandler(HWNDMessageHandlerDelegate* delegate)
       touch_down_contexts_(0),
       last_mouse_hwheel_time_(0),
       msg_handled_(FALSE),
-      dwm_transition_desired_(false) {
+      dwm_transition_desired_(false),
+      weak_factory_(this) {
 }
 
 HWNDMessageHandler::~HWNDMessageHandler() {