Mandoline UI Process: Update namespaces and file names

components/mus/public/cpp/view_surface_client.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 COMPONENTS_MUS_PUBLIC_CPP_VIEW_SURFACE_CLIENT_H_
 #define COMPONENTS_MUS_PUBLIC_CPP_VIEW_SURFACE_CLIENT_H_
 
-namespace mojo {
+namespace mus {
 
 class ViewSurface;
 
 class ViewSurfaceClient {
  public:
   virtual void OnResourcesReturned(
       ViewSurface* surface,
       mojo::Array<mojo::ReturnedResourcePtr> resources) = 0;
 
  protected:
   ~ViewSurfaceClient() {}
 };
 
-}  // namespace mojo
+}  // namespace mus
 
 #endif  // COMPONENTS_MUS_PUBLIC_CPP_VIEW_SURFACE_CLIENT_H_