Similar to the issue in bug #183178, we need to teach the SVGInlineTextBox::paint() to query RenderElement::selectionPseudoStyle() for styles of the ::selection pseudo element so that ::selection:window-inactive { ... } are applied to selected text when the page becomes deactivated. For completeness, SVGInlineTextBox::paint() calls RenderElement::getCachedPseudoStyle() at <http://trac.webkit.org/browser/trunk/Source/WebCore/rendering/svg/SVGInlineTextBox.cpp?rev=229031#L268>. But these styles never change when the page becomes deactivated.