[views-mus] Prevent creating a native OzonePlatform in mus tests.

ui/views/views_test_suite.cc

Index: ui/views/views_test_suite.cc
diff --git a/ui/views/views_test_suite.cc b/ui/views/views_test_suite.cc
index bd08ea3a7910577cb789699f1d28b386f24fdc50..82c406c5ea9dbf58440232eca06944368c6943df 100644
--- a/ui/views/views_test_suite.cc
+++ b/ui/views/views_test_suite.cc
@@ -53,16 +53,26 @@ void ViewsTestSuite::Initialize() {
   ASSERT_TRUE(PathService::Get(ui::UI_TEST_PAK, &ui_test_pak_path));
   ui::ResourceBundle::InitSharedInstanceWithPakPath(ui_test_pak_path);
 #if defined(USE_AURA)
-  env_ = aura::Env::CreateInstance();
+  InitializeEnv();
 #endif
 }
 
 void ViewsTestSuite::Shutdown() {
 #if defined(USE_AURA)
-  env_.reset();
+  DestroyEnv();
 #endif
   ui::ResourceBundle::CleanupSharedInstance();
   base::TestSuite::Shutdown();
 }
 
+#if defined(USE_AURA)
+void ViewsTestSuite::InitializeEnv() {
+  env_ = aura::Env::CreateInstance();
+}
+
+void ViewsTestSuite::DestroyEnv() {
+  env_.reset();
+}
+#endif
+
 }  // namespace views