Delete WindowManagerWindowTreeFactorySetTestApi.

services/ui/ws/window_manager_window_tree_factory.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_WINDOW_MANAGER_WINDOW_TREE_FACTORY_H_
 #define SERVICES_UI_WS_WINDOW_MANAGER_WINDOW_TREE_FACTORY_H_
 
 #include <stdint.h>
 
 #include "mojo/public/cpp/bindings/binding.h"
 #include "services/ui/public/interfaces/window_manager_window_tree_factory.mojom.h"
 #include "services/ui/ws/user_id.h"
 
 namespace ui {
 namespace ws {
 
 class ServerWindow;
 class WindowManagerWindowTreeFactorySet;
 class WindowServer;
 class WindowTree;
 
-namespace test {
-class WindowManagerWindowTreeFactorySetTestApi;
-}
-
 // Implementation of mojom::WindowManagerWindowTreeFactory.
 class WindowManagerWindowTreeFactory
     : public mojom::WindowManagerWindowTreeFactory {
  public:
   WindowManagerWindowTreeFactory(
       WindowManagerWindowTreeFactorySet* window_manager_window_tree_factory_set,
       const UserId& user_id,
       mojo::InterfaceRequest<mojom::WindowManagerWindowTreeFactory> request);
   ~WindowManagerWindowTreeFactory() override;
 
   const UserId& user_id() const { return user_id_; }
 
   WindowTree* window_tree() { return window_tree_; }
 
   // mojom::WindowManagerWindowTreeFactory:
   void CreateWindowTree(mojom::WindowTreeRequest window_tree_request,
                         mojom::WindowTreeClientPtr window_tree_client) override;
 
  private:
-  friend class test::WindowManagerWindowTreeFactorySetTestApi;
-
   // Used by tests.
   WindowManagerWindowTreeFactory(WindowManagerWindowTreeFactorySet* registry,
                                  const UserId& user_id);
 
   WindowServer* GetWindowServer();
 
   void SetWindowTree(WindowTree* window_tree);
 
   WindowManagerWindowTreeFactorySet* window_manager_window_tree_factory_set_;
   const UserId user_id_;
   mojo::Binding<mojom::WindowManagerWindowTreeFactory> binding_;
 
   // Owned by WindowServer.
   WindowTree* window_tree_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowManagerWindowTreeFactory);
 };
 
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_WINDOW_MANAGER_WINDOW_TREE_FACTORY_H_