Revert of Mandoline UI Process: Update namespaces and file names

components/mus/BUILD.gn

 # 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.
 
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//mojo/public/mojo_application.gni")
 
 if (is_android) {
   import("//build/config/android/config.gni")
@@ skipping 43 matching lines @@
     "display_manager_delegate.h",
     "display_manager_factory.h",
     "event_dispatcher.cc",
     "event_dispatcher.h",
     "focus_controller.cc",
     "focus_controller.h",
     "focus_controller_delegate.h",
     "gesture_manager.cc",
     "gesture_manager.h",
     "gesture_manager_delegate.h",
-    "mus_app.cc",
-    "mus_app.h",
     "server_view.cc",
     "server_view.h",
     "server_view_delegate.h",
     "server_view_drawn_tracker.cc",
     "server_view_drawn_tracker.h",
     "server_view_drawn_tracker_observer.h",
     "server_view_observer.h",
     "view_coordinate_conversions.cc",
     "view_coordinate_conversions.h",
     "view_locator.cc",
     "view_locator.h",
+    "view_manager_app.cc",
+    "view_manager_app.h",
     "view_tree_host_connection.cc",
     "view_tree_host_connection.h",
     "view_tree_host_delegate.h",
     "view_tree_host_impl.cc",
     "view_tree_host_impl.h",
     "view_tree_impl.cc",
     "view_tree_impl.h",
     "window_manager_access_policy.cc",
     "window_manager_access_policy.h",
   ]
@@ skipping 117 matching lines @@
     "//components/mus/public/cpp/tests:test_support",
     "//components/mus/public/interfaces",
     "//mojo/application/public/cpp:sources",
     "//mojo/application/public/cpp:test_support",
     "//ui/mojo/geometry:interfaces",
     "//ui/mojo/geometry:util",
   ]
 
   data_deps = [ ":mus" ]
 }