Fix the painting problems seen in the tabstrip when switching from a theme to glass on Windows.

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 0e513db03d740ecc6d42ab23db1240f497c686eb..2c9248a88f330405f257becfc03141e8b12c2c9f 100644
--- a/ui/views/win/hwnd_message_handler.cc
+++ b/ui/views/win/hwnd_message_handler.cc
@@ -815,9 +815,6 @@ void HWNDMessageHandler::FrameTypeChanged() {
     UINT flags = SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER;
     SetWindowPos(hwnd(), NULL, 0, 0, 0, 0, flags | SWP_HIDEWINDOW);
     SetWindowPos(hwnd(), NULL, 0, 0, 0, 0, flags | SWP_SHOWWINDOW);
-    // Invalidate the window to force a paint. There may be child windows which
-    // could resize in this context. Don't paint right away.
-    ::InvalidateRect(hwnd(), NULL, FALSE);
   }
 
   // WM_DWMCOMPOSITIONCHANGED is only sent to top level windows, however we want