Remove SurfaceSequence from mus client code.

ui/aura/test/mus/test_window_tree.h

 // Copyright 2015 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 UI_AURA_TEST_MUS_TEST_WINDOW_TREE_H_
 #define UI_AURA_TEST_MUS_TEST_WINDOW_TREE_H_
 
 #include <stdint.h>
 
 #include <set>
@@ skipping 106 matching lines @@
                          const mojo::String& name,
                          mojo::Array<uint8_t> value) override;
   void SetWindowOpacity(uint32_t change_id,
                         uint32_t window_id,
                         float opacity) override;
   void AttachCompositorFrameSink(
       uint32_t window_id,
       ui::mojom::CompositorFrameSinkType type,
       mojo::InterfaceRequest<cc::mojom::MojoCompositorFrameSink> surface,
       cc::mojom::MojoCompositorFrameSinkClientPtr client) override;
-  void OnWindowSurfaceDetached(uint32_t window_id,
-                               const cc::SurfaceSequence& sequence) override;
   void AddWindow(uint32_t change_id, uint32_t parent, uint32_t child) override;
   void RemoveWindowFromParent(uint32_t change_id, uint32_t window_id) override;
   void AddTransientWindow(uint32_t change_id,
                           uint32_t window_id,
                           uint32_t transient_window_id) override;
   void RemoveTransientWindowFromParent(uint32_t change_id,
                                        uint32_t window_id) override;
   void SetModal(uint32_t change_id, uint32_t window_id) override;
   void ReorderWindow(uint32_t change_id,
                      uint32_t window_id,
@@ skipping 50 matching lines @@
   mojo::Map<mojo::String, mojo::Array<uint8_t>> last_new_window_properties_;
 
   TransientData transient_data_;
 
   DISALLOW_COPY_AND_ASSIGN(TestWindowTree);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_TEST_MUS_TEST_WINDOW_TREE_H_