Removes code using mus client lib

ui/views/widget/native_widget_unittest.cc

 // Copyright (c) 2012 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 "base/macros.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/views/controls/native/native_view_host.h"
 #include "ui/views/test/views_test_base.h"
 #include "ui/views/view.h"
 #include "ui/views/widget/native_widget_private.h"
@@ skipping 65 matching lines @@
 TEST_F(NativeWidgetTest, GetTopLevelNativeWidget1) {
   ScopedTestWidget widget(CreateNativeWidget());
   EXPECT_EQ(widget.get(),
             internal::NativeWidgetPrivate::GetTopLevelNativeWidget(
                 widget->GetWidget()->GetNativeView()));
 }
 
 // |toplevel_widget| has the toplevel NativeWidget.
 TEST_F(NativeWidgetTest, GetTopLevelNativeWidget2) {
   // This test relies on GetContext(). http://crbug.com/663809.
-  if (IsAuraMusClient())
+  if (IsMus())
     return;
 
   internal::NativeWidgetPrivate* child_widget = CreateNativeSubWidget();
   {
     ScopedTestWidget toplevel_widget(CreateNativeWidget());
 
     // |toplevel_widget| owns |child_host|.
     NativeViewHost* child_host = new NativeViewHost;
     toplevel_widget->GetWidget()->SetContentsView(child_host);
 
     // |child_host| hosts |child_widget|'s NativeView.
     child_host->Attach(child_widget->GetWidget()->GetNativeView());
 
     EXPECT_EQ(toplevel_widget.get(),
               internal::NativeWidgetPrivate::GetTopLevelNativeWidget(
                   child_widget->GetWidget()->GetNativeView()));
   }
   // NativeViewHost only had a weak reference to the |child_widget|'s
   // NativeView. Delete it and the associated Widget.
   child_widget->CloseNow();
 }
 
 }  // namespace views