Remove workarounds for Win32 event dispatcher bugs

This includes the startstop timer delay in QAbstractAnimation, and the
inSizeMove workaround for paint events.

Reviewed-by: Prasanth Ullattil

1 files changed, 0 insertions, 12 deletions

diff --git a/src/gui/painting/qbackingstore.cpp b/src/gui/painting/qbackingstore.cpp
index 7c07df8..7facd91 100644
--- a/src/gui/painting/qbackingstore.cpp
+++ b/src/gui/painting/qbackingstore.cpp
@@ -497,18 +497,6 @@ static inline void sendUpdateRequest(QWidget *widget, bool updateImmediately)
     if (!widget)
         return;
 
-#if defined(Q_WS_WIN) && !defined(Q_OS_WINCE)
-    if (QApplicationPrivate::inSizeMove && widget->internalWinId() && !updateImmediately
-        && !widget->testAttribute(Qt::WA_DontShowOnScreen)) {
-        // Tell Windows to send us a paint event if we're in WM_SIZE/WM_MOVE; posted events
-        // are blocked until the mouse button is released. See task 146849.
-        const QRegion rgn(qt_dirtyRegion(widget));
-        InvalidateRgn(widget->internalWinId(), rgn.handle(), false);
-        qt_widget_private(widget)->dirty = QRegion();
-        return;
-    }
-#endif
-
     if (updateImmediately) {
         QEvent event(QEvent::UpdateRequest);
         QApplication::sendEvent(widget, &event);