aura-mus: add a drag representation image.

services/ui/ws/test_utils.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 SERVICES_UI_WS_TEST_UTILS_H_
 #define SERVICES_UI_WS_TEST_UTILS_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 329 matching lines @@
       const base::Optional<std::vector<uint8_t>>& value) override {}
   void WmSetModalType(uint32_t window_id, ui::ModalType type) override;
   void WmSetCanFocus(uint32_t window_id, bool can_focus) override {}
   void WmCreateTopLevelWindow(
       uint32_t change_id,
       ClientSpecificId requesting_client_id,
       const std::unordered_map<std::string, std::vector<uint8_t>>& properties)
       override;
   void WmClientJankinessChanged(ClientSpecificId client_id,
                                 bool janky) override;
+  void WmBuildDragImage(const gfx::Point& cursor_location,
+                        const SkBitmap& drag_image,
+                        const gfx::Vector2d& drag_image_offset,
+                        ui::mojom::DragEventSource source) override;
+  void WmMoveDragImage(const gfx::Point& cursor_location,
+                       const WmMoveDragImageCallback& callback) override;
+  void WmDestroyDragImage() override;
   void WmPerformMoveLoop(uint32_t change_id,
                          uint32_t window_id,
                          mojom::MoveLoopSource source,
                          const gfx::Point& cursor_location) override;
   void WmCancelMoveLoop(uint32_t window_id) override;
   void WmDeactivateWindow(uint32_t window_id) override;
   void WmStackAbove(uint32_t change_id, uint32_t above_id,
                     uint32_t below_id) override;
   void WmStackAtTop(uint32_t change_id, uint32_t window_id) override;
   void OnAccelerator(uint32_t ack_id,
@@ skipping 320 matching lines @@
 ServerWindow* NewWindowInTree(WindowTree* tree, ClientWindowId* client_id);
 ServerWindow* NewWindowInTreeWithParent(WindowTree* tree,
                                         ServerWindow* parent,
                                         ClientWindowId* client_id = nullptr);
 
 }  // namespace test
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_TEST_UTILS_H_