Repaint windows on screen unlock.

ui/views/win/hwnd_message_handler.h

Index: ui/views/win/hwnd_message_handler.h
diff --git a/ui/views/win/hwnd_message_handler.h b/ui/views/win/hwnd_message_handler.h
index fdd048509fce901466246313a2706ccee46e996b..3aadeb10bae2a36501e4271ce180a13f2d5a325b 100644
--- a/ui/views/win/hwnd_message_handler.h
+++ b/ui/views/win/hwnd_message_handler.h
@@ -283,6 +283,10 @@ class VIEWS_EXPORT HWNDMessageHandler :
   // layered windows only.
   void RedrawLayeredWindowContents();
 
+  // Attempts to force the window to be redrawn, ensuring that it gets
+  // onscreen.
+  void ForceRedrawWindow(int attempts);
+
   // Message Handlers ----------------------------------------------------------
 
   BEGIN_SAFE_MSG_MAP_EX(HWNDMessageHandler)
@@ -371,6 +375,7 @@ class VIEWS_EXPORT HWNDMessageHandler :
     MSG_WM_THEMECHANGED(OnThemeChanged)
     MSG_WM_WINDOWPOSCHANGED(OnWindowPosChanged)
     MSG_WM_WINDOWPOSCHANGING(OnWindowPosChanging)
+    MSG_WM_WTSSESSION_CHANGE(OnSessionChange)
   END_MSG_MAP()
 
   // Message Handlers.
@@ -426,6 +431,7 @@ class VIEWS_EXPORT HWNDMessageHandler :
   LRESULT OnTouchEvent(UINT message, WPARAM w_param, LPARAM l_param);
   void OnWindowPosChanging(WINDOWPOS* window_pos);
   void OnWindowPosChanged(WINDOWPOS* window_pos);
+  void OnSessionChange(WPARAM status_code, PWTSSESSION_NOTIFICATION session_id);

[sky, 2014/01/16 16:36:37]

Keep alphabetical (see comment on 382).

 
   typedef std::vector<ui::TouchEvent> TouchEvents;
   // Helper to handle the list of touch events passed in. We need this because