Mandoline UI Process: Update namespaces and file names

components/mus/server_view_drawn_tracker_unittest.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"
 #include "components/mus/test_server_view_delegate.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-namespace view_manager {
+namespace mus {
 namespace {
 
 class TestServerViewDrawnTrackerObserver
     : public ServerViewDrawnTrackerObserver {
  public:
   TestServerViewDrawnTrackerObserver()
       : change_count_(0u),
         ancestor_(nullptr),
         view_(nullptr),
         is_drawn_(false) {}
@@ skipping 106 matching lines @@
   EXPECT_FALSE(drawn_observer.is_drawn());
   drawn_observer.clear_change_count();
 
   root.Add(&child_child);
   EXPECT_EQ(1u, drawn_observer.change_count());
   EXPECT_EQ(&child_child, drawn_observer.view());
   EXPECT_EQ(nullptr, drawn_observer.ancestor());
   EXPECT_TRUE(drawn_observer.is_drawn());
 }
 
-}  // namespace view_manager
+}  // namespace mus