Mandoline UI Process: Update namespaces and file names

components/mus/server_view_drawn_tracker.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/server_view_drawn_tracker.h"
 
 #include "components/mus/server_view.h"
 #include "components/mus/server_view_drawn_tracker_observer.h"
 
-namespace view_manager {
+namespace mus {
 
 ServerViewDrawnTracker::ServerViewDrawnTracker(
     ServerView* view,
     ServerViewDrawnTrackerObserver* observer)
     : view_(view), observer_(observer), drawn_(view->IsDrawn()) {
   AddObservers();
 }
 
 ServerViewDrawnTracker::~ServerViewDrawnTracker() {
   RemoveObservers();
@@ skipping 41 matching lines @@
   AddObservers();
   const bool is_drawn = view_->IsDrawn();
   SetDrawn(is_drawn ? nullptr : old_parent, is_drawn);
 }
 
 void ServerViewDrawnTracker::OnViewVisibilityChanged(ServerView* view) {
   const bool is_drawn = view_->IsDrawn();
   SetDrawn(is_drawn ? nullptr : view->parent(), is_drawn);
 }
 
-}  // namespace view_manager
+}  // namespace mus