Revert of Replaced BackgroundAnimator with ShelfBackgroundAnimator.

ash/test/ash_md_test_base.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 "ash/test/ash_md_test_base.h"
 
 #include "ash/common/shelf/shelf_constants.h"
-#include "ash/common/test/material_design_controller_test_api.h"
+#include "ash/test/material_design_controller_test_api.h"
 
 namespace ash {
 namespace test {
 
 AshMDTestBase::AshMDTestBase() {}
 
 AshMDTestBase::~AshMDTestBase() {}
 
 void AshMDTestBase::SetUp() {
   AshTestBase::SetUp();
@@ skipping 23 matching lines @@
 int AshMDTestBase::GetMdMaximizedWindowHeightOffset() {
   return md_maximized_window_height_offset_;
 }
 
 int AshMDTestBase::GetMdAutoHiddenShelfHeightOffset() {
   return md_auto_hidden_shelf_height_offset_;
 }
 
 }  // namespace test
 }  // namespace ash