[cc] Remove unused parameter to DidUpdateScrollOffset

cc/layers/layer_impl.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/layers/layer_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 812 matching lines @@
 }
 
 void LayerImpl::AddDamageRect(const gfx::Rect& damage_rect) {
   damage_rect_.Union(damage_rect);
 }
 
 void LayerImpl::SetCurrentScrollOffset(const gfx::ScrollOffset& scroll_offset) {
   DCHECK(IsActive());
   if (layer_tree_impl()->property_trees()->scroll_tree.SetScrollOffset(
           id(), scroll_offset))
-    layer_tree_impl()->DidUpdateScrollOffset(id(), transform_tree_index());
+    layer_tree_impl()->DidUpdateScrollOffset(id());
 }
 
 gfx::ScrollOffset LayerImpl::CurrentScrollOffset() const {
   return layer_tree_impl()->property_trees()->scroll_tree.current_scroll_offset(
       id());
 }
 
 void LayerImpl::UpdatePropertyTreeScrollOffset() {
   // TODO(enne): in the future, scrolling should update the scroll tree
   // directly instead of going through layers.
@@ skipping 263 matching lines @@
            .layer_transforms_should_scale_layer_contents) {
     return default_scale;
   }
 
   gfx::Vector2dF transform_scales = MathUtil::ComputeTransform2dScaleComponents(
       ScreenSpaceTransform(), default_scale);
   return std::max(transform_scales.x(), transform_scales.y());
 }
 
 }  // namespace cc