[ash-md] Adjusts layout of lists with sticky header rows to match specs

ash/common/system/tray/tri_view.h

 // 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.
 
 #ifndef ASH_COMMON_SYSTEM_TRAY_TRI_VIEW_H_
 #define ASH_COMMON_SYSTEM_TRAY_TRI_VIEW_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
@@ skipping 103 matching lines @@
   void SetFlexForContainer(Container container, int flex);
 
   // Sets the |layout_manager| used by the given |container|.
   void SetContainerLayout(Container container,
                           std::unique_ptr<views::LayoutManager> layout_manager);
 
  protected:
   // View:
   void ViewHierarchyChanged(
       const views::View::ViewHierarchyChangedDetails& details) override;
+  const char* GetClassName() const override;
 
  private:
   friend class TriViewTest;
 
   // Returns the View for the given |container|.
   views::View* GetContainer(Container container);
 
   // Returns the layout manager for the given |container|.
   SizeRangeLayout* GetLayoutManager(Container container);
 
@@ skipping 10 matching lines @@
   // to manipulate the child views during construction/destruction so this flag
   // is used to disable the DCHECK during construction/destruction.
   bool enable_hierarchy_changed_dcheck_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(TriView);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_TRAY_TRI_VIEW_H_