Move more message handlers from NativeWidgetWin to HWNDMessageHandler.

ui/views/widget/hwnd_message_handler.h

Index: ui/views/widget/hwnd_message_handler.h
===================================================================
--- ui/views/widget/hwnd_message_handler.h	(revision 152370)
+++ ui/views/widget/hwnd_message_handler.h	(working copy)
@@ -49,12 +49,22 @@
   void OnExitMenuLoop(BOOL is_track_popup_menu);
   void OnExitSizeMove();
   LRESULT OnImeMessages(UINT message, WPARAM w_param, LPARAM l_param);
+  void OnInitMenu(HMENU menu);
+  void OnInitMenuPopup();
   void OnInputLangChange(DWORD character_set, HKL input_language_id);
+  LRESULT OnKeyEvent(UINT message, WPARAM w_param, LPARAM l_param);
+  void OnKillFocus(HWND focused_window);
   void OnMove(const CPoint& point);
   void OnMoving(UINT param, const RECT* new_bounds);
+  LRESULT OnNCHitTest(const CPoint& point);
   LRESULT OnNCUAHDrawCaption(UINT message, WPARAM w_param, LPARAM l_param);
   LRESULT OnNCUAHDrawFrame(UINT message, WPARAM w_param, LPARAM l_param);
   LRESULT OnPowerBroadcast(DWORD power_event, DWORD data);
+  LRESULT OnReflectedMessage(UINT message, WPARAM w_param, LPARAM l_param);
+  LRESULT OnSetCursor(UINT message, WPARAM w_param, LPARAM l_param);
+  void OnSetFocus(HWND last_focused_window);
+  LRESULT OnSetIcon(UINT size_type, HICON new_icon);
+  LRESULT OnSetText(const wchar_t* text);
   void OnThemeChanged();
   void OnVScroll(int scroll_type, short position, HWND scrollbar);