Remove SurfaceSequence from mus client code.

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 417 matching lines @@
                           uint32_t window,
                           std::unique_ptr<ui::Event> event,
                           bool matches_pointer_watcher) override;
   void OnPointerEventObserved(std::unique_ptr<ui::Event> event,
                               uint32_t window_id) override;
   void OnWindowFocused(uint32_t focused_window_id) override;
   void OnWindowPredefinedCursorChanged(uint32_t window_id,
                                        mojom::Cursor cursor_id) override;
   void OnWindowSurfaceChanged(Id window_id,
                               const cc::SurfaceId& surface_id,
-                              const cc::SurfaceSequence& surface_sequence,
                               const gfx::Size& frame_size,
                               float device_scale_factor) override;
   void OnDragDropStart(
       mojo::Map<mojo::String, mojo::Array<uint8_t>> mime_data) override;
   void OnDragEnter(uint32_t window,
                    uint32_t key_state,
                    const gfx::Point& position,
                    uint32_t effect_bitmask,
                    const OnDragEnterCallback& callback) override;
   void OnDragOver(uint32_t window,
@@ skipping 212 matching lines @@
 ServerWindow* NewWindowInTree(WindowTree* tree, ClientWindowId* client_id);
 ServerWindow* NewWindowInTreeWithParent(WindowTree* tree,
                                         ServerWindow* parent,
                                         ClientWindowId* client_id);
 
 }  // namespace test
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_TEST_UTILS_H_