chromeos: Move files in //ash/common to //ash, part 2

ash/system/date/date_view_unittest.cc

 // Copyright 2013 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/system/date/date_view.h"
 
-#include "ash/common/test/ash_test.h"
+#include "ash/test/ash_test.h"
 #include "ui/views/controls/label.h"
 
 namespace ash {
 namespace tray {
 
 class TimeViewTest : public AshTest {
  public:
   TimeViewTest() {}
   ~TimeViewTest() override {}
 
@@ skipping 37 matching lines @@
 
   // Switching back to horizontal updates the labels again.
   time_view()->UpdateClockLayout(TimeView::ClockLayout::HORIZONTAL_CLOCK);
   EXPECT_EQ(time_view(), horizontal_label()->parent());
   EXPECT_FALSE(vertical_label_hours()->parent());
   EXPECT_FALSE(vertical_label_minutes()->parent());
 }
 
 }  // namespace tray
 }  // namespace ash