Adds WindowManagerManager to mus

components/mus/ws/connection_manager_delegate.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_WS_CONNECTION_MANAGER_DELEGATE_H_
 #define COMPONENTS_MUS_WS_CONNECTION_MANAGER_DELEGATE_H_
 
 #include <stdint.h>
 
 #include <string>
 
 #include "components/mus/common/types.h"
 #include "components/mus/public/interfaces/window_tree.mojom.h"
 #include "mojo/public/cpp/bindings/interface_request.h"
 
 namespace mus {
 
+namespace mojom {
+class Display;
+class WindowManagerFactory;
+class WindowTree;
+}
+
 namespace ws {
 
 class ClientConnection;
 class ConnectionManager;
 class ServerWindow;
+class WindowTreeHostImpl;
 
 class ConnectionManagerDelegate {
  public:
   virtual void OnFirstRootConnectionCreated();
 
   virtual void OnNoMoreRootConnections() = 0;
 
   // Creates a ClientConnection in response to Embed() calls on the
   // ConnectionManager.
   virtual ClientConnection* CreateClientConnectionForEmbedAtWindow(
       ConnectionManager* connection_manager,
-      mojo::InterfaceRequest<mojom::WindowTree> tree_request,
+      mojom::WindowTreeRequest tree_request,
       ServerWindow* root,
       uint32_t policy_bitmask,
       mojom::WindowTreeClientPtr client) = 0;
 
+  virtual ClientConnection* CreateClientConnectionForWindowManager(
+      WindowTreeHostImpl* tree_host,
+      ServerWindow* window,
+      const mojom::Display& display,
+      uint32_t user_id,
+      mojom::WindowManagerFactory* factory) = 0;
+
+  // Called if no WindowTreeHosts have been created, but a
+  // WindowManagerFactory has been set.
+  virtual void CreateDefaultWindowTreeHosts() = 0;
+
  protected:
   virtual ~ConnectionManagerDelegate() {}
 };
 
 }  // namespace ws
-
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_WS_CONNECTION_MANAGER_DELEGATE_H_