Bug 263927 SWTEventHelper drag/drop broken
The last change removed the Display.map() call.
tests/org.eclipse.ui.tests.harness/src/org/eclipse/ui/tests/harness/util/SWTEventHelper.java
SWTEventHelper.mouseDownEvent(Display.getCurrent(), 1, false);
		
		
		SWTEventHelper.mouseMoveEvent(Display.getCurrent(), xstart
				+ gestureSize, ystart, possibleTrue);
		SWTEventHelper.mouseMoveEvent(Display.getCurrent(), xstart, ystart,
				possibleTrue);
		while (xstart != xend) {
			SWTEventHelper.mouseMoveEvent(Display.getCurrent(), xstart, ystart,
					false);
			if (xstart < xend)
				xstart++;
			else
				xstart--;
		}
		while (ystart != yend) {
			SWTEventHelper.mouseMoveEvent(Display.getCurrent(), xstart, ystart,
					false);
			if (ystart < yend)
				ystart++;
			else
				ystart--;
		}
		SWTEventHelper.mouseMoveEvent(Display.getCurrent(), xend, yend,
				possibleTrue);
		SWTEventHelper.mouseUpEvent(Display.getCurrent(), 1, possibleTrue);
		DisplayHelper.sleep(Display.getCurrent(), 100);
	}
}