LayoutPoint RenderTheme::volumeSliderOffsetFromMuteButton(const RenderBox& muteButtonBox, const LayoutSize& size) const
{
LayoutUnit y = -size.height();
FloatPoint absPoint = muteButtonBox.localToAbsolute(FloatPoint(muteButtonBox.offsetLeft(), y), IsFixed | UseTransforms);
if (absPoint.y() < 0)
y = muteButtonBox.height();
return LayoutPoint(0, y);
}
void RenderMediaVolumeSliderContainer::layout()
{
RenderBlock::layout();
if (style()->display() == NONE || !nextSibling() || !nextSibling()->isBox())
return;
RenderBox* buttonBox = toRenderBox(nextSibling());
int absoluteOffsetTop = buttonBox->localToAbsolute(FloatPoint(0, -size().height())).y();
LayoutStateDisabler layoutStateDisabler(view());
// If the slider would be rendered outside the page, it should be moved below the controls.
if (UNLIKELY(absoluteOffsetTop < 0))
setY(buttonBox->offsetTop() + theme()->volumeSliderOffsetFromMuteButton(buttonBox, pixelSnappedSize()).y());
}