MacViews: Overlay Scrollbars with Show/Hide Animations

ui/native_theme/native_theme_aura.cc

Index: ui/native_theme/native_theme_aura.cc
diff --git a/ui/native_theme/native_theme_aura.cc b/ui/native_theme/native_theme_aura.cc
index 223969f44b34ffd11db2cc6e091f974f48a932b8..af64dfd3aaf5c7ec7727fc9f0d98413e969fa8af 100644
--- a/ui/native_theme/native_theme_aura.cc
+++ b/ui/native_theme/native_theme_aura.cc
@@ -180,10 +180,12 @@ void NativeThemeAura::PaintScrollbarTrack(
   canvas->drawIRect(gfx::RectToSkIRect(rect), paint);
 }
 
-void NativeThemeAura::PaintScrollbarThumb(SkCanvas* canvas,
-                                          Part part,
-                                          State state,
-                                          const gfx::Rect& rect) const {
+void NativeThemeAura::PaintScrollbarThumb(
+    SkCanvas* canvas,
+    Part part,
+    State state,
+    const ScrollbarThumbExtraParams& extra_params,
+    const gfx::Rect& rect) const {
   // Do not paint if state is disabled.
   if (state == kDisabled)
     return;