[cc] Remove unused parameter to DidUpdateScrollOffset

cc/layers/layer_impl_unittest.cc

 // Copyright 2011 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 "cc/animation/mutable_properties.h"
 #include "cc/layers/painted_scrollbar_layer_impl.h"
 #include "cc/layers/solid_color_scrollbar_layer_impl.h"
 #include "cc/output/filter_operation.h"
@@ skipping 298 matching lines @@
           arbitrary_filters, root->effect_tree_index(),
           host_impl.active_tree()));
 
   // Related scrolling functions.
   VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetBounds(large_size));
   VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetBounds(large_size));
   host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
   VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->ScrollBy(arbitrary_vector2d));
   VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(layer->ScrollBy(gfx::Vector2d()));
   VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(
-      layer->layer_tree_impl()->DidUpdateScrollOffset(
-          layer->id(), layer->transform_tree_index()));
+      layer->layer_tree_impl()->DidUpdateScrollOffset(layer->id()));
   layer->layer_tree_impl()
       ->property_trees()
       ->scroll_tree.SetScrollOffsetDeltaForTesting(layer->id(),
                                                    gfx::Vector2dF());
   VERIFY_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetCurrentScrollOffset(
       gfx::ScrollOffset(arbitrary_vector2d.x(), arbitrary_vector2d.y())));
   VERIFY_NO_NEEDS_UPDATE_DRAW_PROPERTIES(layer->SetCurrentScrollOffset(
       gfx::ScrollOffset(arbitrary_vector2d.x(), arbitrary_vector2d.y())));
 
   // Unrelated functions, always set to new values, always set needs update.
@@ skipping 263 matching lines @@
 
   pending_layer->PushPropertiesTo(layer());
 
   EXPECT_VECTOR_EQ(gfx::Vector2dF(22, 23), layer()->CurrentScrollOffset());
   EXPECT_VECTOR_EQ(layer()->CurrentScrollOffset(),
                    pending_layer->CurrentScrollOffset());
 }
 
 }  // namespace
 }  // namespace cc