Use scroll-boundary-behavior to control overscroll-refresh/glow on android.

cc/input/scroll_state.h

 // Copyright 2015 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.
 
 #ifndef CC_INPUT_SCROLL_STATE_H_
 #define CC_INPUT_SCROLL_STATE_H_
 
 #include <list>
 #include <memory>
 
@@ skipping 79 matching lines @@
   bool FullyConsumed() const { return !data_.delta_x && !data_.delta_y; }
 
   void set_caused_scroll(bool x, bool y) {
     data_.caused_scroll_x |= x;
     data_.caused_scroll_y |= y;
   }
 
   bool caused_scroll_x() const { return data_.caused_scroll_x; }
   bool caused_scroll_y() const { return data_.caused_scroll_y; }
 
+  void set_scroll_chain_cut(bool cut) { data_.is_scroll_chain_cut = cut; }

[dcheng, 2017/08/25 23:12:17]

Nit: for symmetry I would name this set_is_scroll_chain_cut (for example, see
line 63-64 in this file)

[sunyunjia, 2017/08/29 17:32:30]

Done.

+
+  bool is_scroll_chain_cut() const { return data_.is_scroll_chain_cut; }
+
   LayerTreeImpl* layer_tree_impl() { return layer_tree_impl_; }
   ScrollStateData* data() { return &data_; }
 
  private:
   ScrollStateData data_;
   LayerTreeImpl* layer_tree_impl_;
   std::list<ScrollNode*> scroll_chain_;
 };
 
 }  // namespace cc
 
 #endif  // CC_INPUT_SCROLL_STATE_H_