Revert of Mandoline UI Process: Update namespaces and file names

components/mus/public/cpp/view_tree_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_PUBLIC_CPP_VIEW_TREE_DELEGATE_H_
 #define COMPONENTS_MUS_PUBLIC_CPP_VIEW_TREE_DELEGATE_H_
 
 #include <string>
 
 #include "components/mus/public/interfaces/view_tree.mojom.h"
 #include "mojo/application/public/interfaces/service_provider.mojom.h"
 #include "mojo/services/network/public/interfaces/url_loader.mojom.h"
 
-namespace mus {
+namespace mojo {
 
 class View;
 class ViewTreeConnection;
 
 // Interface implemented by an application using the view manager.
 //
 // Each call to OnEmbed() results in a new ViewTreeConnection and new root View.
 // ViewTreeConnection is deleted by any of the following:
 // . If the root of the connection is destroyed. This happens if the owner
 //   of the root Embed()s another app in root, or the owner explicitly deletes
@@ skipping 26 matching lines @@
   virtual void OnUnembed();
 
   // Called from the destructor of ViewTreeConnection after all the Views have
   // been destroyed. |connection| is no longer valid after this call.
   virtual void OnConnectionLost(ViewTreeConnection* connection) = 0;
 
  protected:
   virtual ~ViewTreeDelegate() {}
 };
 
-}  // namespace mus
+}  // namespace mojo
 
 #endif  // COMPONENTS_MUS_PUBLIC_CPP_VIEW_TREE_DELEGATE_H_