Refactor ViewsDelegate singleton

ash/drag_drop/drag_drop_controller_unittest.cc

 // Copyright (c) 2012 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/drag_drop/drag_drop_controller.h"
 
 #include "ash/drag_drop/drag_drop_tracker.h"
 #include "ash/drag_drop/drag_image_view.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
@@ skipping 11 matching lines @@
 #include "ui/base/ui_base_switches.h"
 #include "ui/events/event.h"
 #include "ui/events/event_utils.h"
 #include "ui/events/gesture_detection/gesture_configuration.h"
 #include "ui/events/gestures/gesture_types.h"
 #include "ui/events/test/event_generator.h"
 #include "ui/events/test/events_test_utils.h"
 #include "ui/gfx/animation/linear_animation.h"
 #include "ui/gfx/image/image_skia_rep.h"
 #include "ui/views/view.h"
-#include "ui/views/views_delegate.h"
 #include "ui/views/widget/native_widget_aura.h"
 #include "ui/views/widget/native_widget_delegate.h"
 #include "ui/views/widget/widget.h"
 
 namespace ash {
 namespace test {
 
 namespace {
 
 // A simple view that makes sure RunShellDrag is invoked on mouse drag.
@@ skipping 1061 matching lines @@
             drag_drop_controller_->drag_string_);
   EXPECT_EQ(1, drag_view->num_drag_enters_);
   EXPECT_EQ(2, drag_view->num_drag_updates_);
   EXPECT_EQ(1, drag_view->num_drops_);
   EXPECT_EQ(0, drag_view->num_drag_exits_);
   EXPECT_TRUE(drag_view->drag_done_received_);
 }
 
 }  // namespace test
 }  // namespace ash