Revert of Mandoline UI Process: Update namespaces and file names

components/mus/public/cpp/scoped_view_ptr.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_SCOPED_VIEW_PTR_H_
 #define COMPONENTS_MUS_PUBLIC_CPP_SCOPED_VIEW_PTR_H_
 
 #include "components/mus/public/cpp/view_observer.h"
 
-namespace mus {
+namespace mojo {
 
 // Wraps a View, taking overship of the View. Also deals with View being
 // destroyed while ScopedViewPtr still exists.
 class ScopedViewPtr : public ViewObserver {
  public:
   explicit ScopedViewPtr(View* view);
   ~ScopedViewPtr() override;
 
   // Destroys |view|. If |view| is the root of the ViewManager than the
   // ViewManager is destroyed (which in turn destroys |view|).
   static void DeleteViewOrViewManager(View* view);
 
   View* view() { return view_; }
   const View* view() const { return view_; }
 
  private:
   void DetachFromView();
 
   void OnViewDestroying(View* view) override;
 
   View* view_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedViewPtr);
 };
 
-}  // namespace mus
+}  // namespace mojo
 
 #endif  // COMPONENTS_MUS_PUBLIC_CPP_SCOPED_VIEW_PTR_H_