Overscroll and Elasticity for views::ScrollView

cc/blimp/layer_tree_host_remote.cc

 // Copyright 2016 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/blimp/layer_tree_host_remote.h"
 
 #include "base/atomic_sequence_num.h"
 #include "base/auto_reset.h"
 #include "base/memory/ptr_util.h"
 #include "cc/animation/animation_host.h"
@@ skipping 419 matching lines @@
     Layer* layer = layer_tree_->LayerById(client_scroll.first);
     const gfx::ScrollOffset& scroll_offset = client_scroll.second;
 
     // Note the inner viewport scroll delta to report separately.
     if (layer == inner_viewport_scroll_layer) {
       inner_viewport_scroll_delta =
           scroll_offset.DeltaFrom(layer->scroll_offset());
     }
 
     if (layer)
-      layer->SetScrollOffsetFromImplSide(scroll_offset);
+      layer->SetScrollOffsetFromImplSide(scroll_offset, nullptr);
     else
       layer_sync_successful = false;
   }
 
   float page_scale_delta = 1.0f;
   if (client_page_scale != layer_tree_->page_scale_factor()) {
     page_scale_delta = client_page_scale / layer_tree_->page_scale_factor();
     layer_tree_->SetPageScaleFromImplSide(client_page_scale);
   }
 
@@ skipping 41 matching lines @@
         layer_tree_host_proto->mutable_layer_updates(), inputs_only);
   layer_tree_->LayersThatShouldPushProperties().clear();
 
   std::vector<PictureData> pictures =
       engine_picture_cache_->CalculateCacheUpdateAndFlush();
   proto::PictureDataVectorToSkPicturesProto(
       pictures, layer_tree_host_proto->mutable_pictures());
 }
 
 }  // namespace cc