cc: Remove unused arguments from CalculateContentsScale

cc/layers/painted_scrollbar_layer.cc

Index: cc/layers/painted_scrollbar_layer.cc
diff --git a/cc/layers/painted_scrollbar_layer.cc b/cc/layers/painted_scrollbar_layer.cc
index 3764689d0e39d3e52ccdd2c69c8849c0b1f791a4..c0b2a728e3c9077c46a7f194dce94174d0780fd0 100644
--- a/cc/layers/painted_scrollbar_layer.cc
+++ b/cc/layers/painted_scrollbar_layer.cc
@@ -98,19 +98,11 @@ float PaintedScrollbarLayer::ClampScaleToMaxTextureSize(float scale) {
 
 void PaintedScrollbarLayer::CalculateContentsScale(
     float ideal_contents_scale,
-    float device_scale_factor,
-    float page_scale_factor,
-    float maximum_animation_contents_scale,
-    bool animating_transform_to_screen,
     float* contents_scale_x,
     float* contents_scale_y,
     gfx::Size* content_bounds) {
   ContentsScalingLayer::CalculateContentsScale(
       ClampScaleToMaxTextureSize(ideal_contents_scale),
-      device_scale_factor,
-      page_scale_factor,
-      maximum_animation_contents_scale,
-      animating_transform_to_screen,
       contents_scale_x,
       contents_scale_y,
       content_bounds);