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

ash/drag_drop/drag_image_view_unittest.cc

 // Copyright 2017 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/common/drag_drop/drag_image_view.h"
+#include "ash/drag_drop/drag_image_view.h"
 
-#include "ash/common/test/ash_test.h"
+#include "ash/test/ash_test.h"
 #include "ui/base/dragdrop/drag_drop_types.h"
 
 namespace ash {
 namespace test {
 
 using DragDropImageTest = AshTest;
 
 TEST_F(DragDropImageTest, SetBoundsConsidersDragHintForTouch) {
   std::unique_ptr<WindowOwner> window_owner(CreateTestWindow());
   DragImageView drag_image_view(
@@ skipping 50 matching lines @@
   drag_image_view.SetBoundsInScreen(large_bounds);
   EXPECT_EQ(large_bounds, drag_image_view.GetBoundsInScreen());
   // Expect that we can change the position without affecting the bounds.
   drag_image_view.SetScreenPosition(new_pos);
   EXPECT_EQ(gfx::Rect(new_pos, large_bounds.size()),
             drag_image_view.GetBoundsInScreen());
 }
 
 }  // namespace test
 }  // namespace ash