Revert of Mandoline UI Process: Update namespaces and file names

components/mus/public/cpp/lib/scoped_view_ptr.cc

 // 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.
 
 #include "components/mus/public/cpp/scoped_view_ptr.h"
 
 #include "components/mus/public/cpp/view.h"
 #include "components/mus/public/cpp/view_observer.h"
 #include "components/mus/public/cpp/view_tree_connection.h"
 
-namespace mus {
+namespace mojo {
 
 ScopedViewPtr::ScopedViewPtr(View* view) : view_(view) {
   view_->AddObserver(this);
 }
 
 ScopedViewPtr::~ScopedViewPtr() {
   if (view_)
     DeleteViewOrViewManager(view_);
   DetachFromView();
 }
@@ skipping 12 matching lines @@
 
   view_->RemoveObserver(this);
   view_ = nullptr;
 }
 
 void ScopedViewPtr::OnViewDestroying(View* view) {
   DCHECK_EQ(view_, view);
   DetachFromView();
 }
 
-}  // namespace mus
+}  // namespace mojo