blink::WebScrollbarThemePainter painter,
blink::WebScrollbarThemeGeometry*);
virtual blink::WebScrollbarLayer* createSolidColorScrollbarLayer(
- blink::WebScrollbar::Orientation orientation, int thumb_thickness,
+ blink::WebScrollbar::Orientation orientation,
+ int thumb_thickness,
+ int track_start,
bool is_left_side_vertical_scrollbar);
virtual blink::WebAnimation* createAnimation(
const blink::WebAnimationCurve& curve,