mus: Remove some dead code from client-lib.

components/mus/public/cpp/lib/window_tree_client_impl.h

 // Copyright 2014 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 COMPONENTS_MUS_PUBLIC_CPP_LIB_WINDOW_TREE_CLIENT_IMPL_H_
 #define COMPONENTS_MUS_PUBLIC_CPP_LIB_WINDOW_TREE_CLIENT_IMPL_H_
 
 #include <map>
 
 #include "components/mus/common/types.h"
@@ skipping 68 matching lines @@
   void Embed(Id window_id,
              mojom::WindowTreeClientPtr client,
              uint32_t policy_bitmask,
              const mojom::WindowTree::EmbedCallback& callback);
 
   void AttachSurface(Id window_id,
                      mojom::SurfaceType type,
                      mojo::InterfaceRequest<mojom::Surface> surface,
                      mojom::SurfaceClientPtr client);
 
-  void set_change_acked_callback(const mojo::Callback<void(void)>& callback) {
-    change_acked_callback_ = callback;
-  }
-  void ClearChangeAckedCallback() { change_acked_callback_.reset(); }
-
   // Start/stop tracking windows. While tracked, they can be retrieved via
   // WindowTreeConnection::GetWindowById.
   void AddWindow(Window* window);
   void RemoveWindow(Id window_id);
 
   bool is_embed_root() const { return is_embed_root_; }
 
   // Called after the root window's observers have been notified of destruction
   // (as the last step of ~Window). This ordering ensures that the Window Server
   // is torn down after the root.
@@ skipping 72 matching lines @@
   void OnWindowFocused(Id focused_window_id) override;
   void OnChangeCompleted(uint32_t change_id, bool success) override;
   void WmSetBounds(uint32_t change_id,
                    Id window_id,
                    mojo::RectPtr transit_bounds) override;
   void WmSetProperty(uint32_t change_id,
                      Id window_id,
                      const mojo::String& name,
                      mojo::Array<uint8_t> transit_data) override;
 
-  void OnActionCompleted(bool success);
-
   mojo::Callback<void(bool)> ActionCompletedCallback();
 
   // This is set once and only once when we get OnEmbed(). It gives the unique
   // id for this connection.
   ConnectionSpecificId connection_id_;
 
   // Id assigned to the next window created.
   ConnectionSpecificId next_window_id_;
 
   // Id used for the next change id supplied to the server.
   uint32_t next_change_id_;
   InFlightMap in_flight_map_;
 
-  mojo::Callback<void(void)> change_acked_callback_;
-
   WindowTreeDelegate* delegate_;
 
   WindowManagerDelegate* window_manager_delegate_;
 
   Window* root_;
 
   IdToWindowMap windows_;
 
   Window* focused_window_;
 
   mojo::Binding<WindowTreeClient> binding_;
   mojom::WindowTreePtr tree_ptr_;
   // Typically this is the value contained in |tree_ptr_|, but tests may
   // directly set this.
   mojom::WindowTree* tree_;
 
   bool is_embed_root_;
 
   bool in_destructor_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(WindowTreeClientImpl);
 };
 
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_PUBLIC_CPP_LIB_WINDOW_TREE_CLIENT_IMPL_H_