Adds MUSViewsInit

components/mus/public/cpp/lib/view_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_VIEW_TREE_CLIENT_IMPL_H_
 #define COMPONENTS_MUS_PUBLIC_CPP_LIB_VIEW_TREE_CLIENT_IMPL_H_
 
 #include "components/mus/public/cpp/types.h"
 #include "components/mus/public/cpp/view.h"
 #include "components/mus/public/cpp/view_tree_connection.h"
 #include "components/mus/public/interfaces/view_tree.mojom.h"
 #include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h"
 
 namespace mus {
 class ViewTreeConnection;
 class ViewTreeDelegate;
 
 // Manages the connection with the View Manager service.
 class ViewTreeClientImpl : public ViewTreeConnection,
                            public mojo::ViewTreeClient {
  public:
   ViewTreeClientImpl(ViewTreeDelegate* delegate,
                      mojo::InterfaceRequest<mojo::ViewTreeClient> request);
   ~ViewTreeClientImpl() override;
 
+  // Wait for OnEmbed(), returning when done.
+  void WaitForEmbed();
+
   bool connected() const { return tree_; }
   ConnectionSpecificId connection_id() const { return connection_id_; }
 
   // API exposed to the view implementations that pushes local changes to the
   // service.
   void DestroyView(Id view_id);
 
   // These methods take TransportIds. For views owned by the current connection,
   // the connection id high word can be zero. In all cases, the TransportId 0x1
   // refers to the root view.
@@ skipping 114 matching lines @@
   bool is_embed_root_;
 
   bool in_destructor_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(ViewTreeClientImpl);
 };
 
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_PUBLIC_CPP_LIB_VIEW_TREE_CLIENT_IMPL_H_