Move shell service to toplevel shell namespace

ui/views/mus/native_widget_mus.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 "ui/views/mus/native_widget_mus.h"
 
 #include "base/macros.h"
 #include "base/thread_task_runner_handle.h"
 #include "components/mus/public/cpp/property_type_converters.h"
 #include "components/mus/public/cpp/window.h"
@@ skipping 220 matching lines @@
  private:
   NativeWidgetMus* native_widget_mus_;
 
   DISALLOW_COPY_AND_ASSIGN(MusWindowObserver);
 };
 
 ////////////////////////////////////////////////////////////////////////////////
 // NativeWidgetMus, public:
 
 NativeWidgetMus::NativeWidgetMus(internal::NativeWidgetDelegate* delegate,
-                                 mojo::Connector* connector,
+                                 shell::Connector* connector,
                                  mus::Window* window,
                                  mus::mojom::SurfaceType surface_type)
     : window_(window),
       native_widget_delegate_(delegate),
       surface_type_(surface_type),
       show_state_before_fullscreen_(ui::PLATFORM_WINDOW_STATE_UNKNOWN),
       ownership_(Widget::InitParams::NATIVE_WIDGET_OWNS_WIDGET),
       content_(new aura::Window(this)),
       close_widget_factory_(this) {
   mus_window_observer_.reset(new MusWindowObserver(this));
@@ skipping 755 matching lines @@
     window_tree_host_->Show();
     GetNativeWindow()->Show();
   } else {
     window_tree_host_->Hide();
     GetNativeWindow()->Hide();
   }
   native_widget_delegate_->OnNativeWidgetVisibilityChanged(window->visible());
 }
 
 }  // namespace views