_ResizeBy
MacDecorator::_ResizeBy(BPoint offset, BRegion* dirty)
WinDecorator::_ResizeBy(BPoint offset, BRegion* dirty)
SysInfoView::_ResizeBy(float widthChange, float heightChange)
BView::_ResizeBy(int32 deltaWidth, int32 deltaHeight)
TabDecorator::_ResizeBy(BPoint offset, BRegion* dirty)