Revert of Mandoline UI Process: Update namespaces and file names

components/mus/focus_controller.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/focus_controller.h"
 
 #include "components/mus/focus_controller_delegate.h"
 #include "components/mus/server_view.h"
 #include "components/mus/server_view_drawn_tracker.h"
 
-namespace mus {
+namespace view_manager {
 
 FocusController::FocusController(FocusControllerDelegate* delegate)
     : delegate_(delegate) {}
 
 FocusController::~FocusController() {}
 
 void FocusController::SetFocusedView(ServerView* view) {
   if (GetFocusedView() == view)
     return;
 
@@ skipping 19 matching lines @@
     delegate_->OnFocusChanged(old, view);
 }
 
 void FocusController::OnDrawnStateChanged(ServerView* ancestor,
                                           ServerView* view,
                                           bool is_drawn) {
   DCHECK(!is_drawn);  // We only observe when drawn.
   SetFocusedViewImpl(ancestor, CHANGE_SOURCE_DRAWN_STATE_CHANGED);
 }
 
-}  // namespace mus
+}  // namespace view_manager