Changes views_aura_mus_unittests to create DesktopNativeWidgetAura

ui/views/test/platform_test_helper.cc

Index: ui/views/test/platform_test_helper.cc
diff --git a/ui/views/test/platform_test_helper.cc b/ui/views/test/platform_test_helper.cc
index b6626189fa390b2141ef70e1ff3704344714770f..488a9e58fd36bd58e0ccdc38cef2fcebee57fbd6 100644
--- a/ui/views/test/platform_test_helper.cc
+++ b/ui/views/test/platform_test_helper.cc
@@ -7,20 +7,15 @@
 #include "base/callback.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
+#include "ui/views/widget/widget.h"
+
+#if defined(USE_AURA)
+#include "ui/aura/window.h"
+#endif
 
 namespace views {
 namespace {
 
-class DefaultPlatformTestHelper : public PlatformTestHelper {
- public:
-  DefaultPlatformTestHelper() {}
-
-  ~DefaultPlatformTestHelper() override {}
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(DefaultPlatformTestHelper);
-};
-
 PlatformTestHelper::Factory test_helper_factory;
 bool is_mus = false;
 bool is_aura_mus_client = false;
@@ -36,7 +31,7 @@ void PlatformTestHelper::set_factory(const Factory& factory) {
 std::unique_ptr<PlatformTestHelper> PlatformTestHelper::Create() {
   return !test_helper_factory.is_null()
              ? test_helper_factory.Run()
-             : base::WrapUnique(new DefaultPlatformTestHelper);
+             : base::WrapUnique(new PlatformTestHelper);
 }
 
 // static
@@ -59,4 +54,10 @@ bool PlatformTestHelper::IsAuraMusClient() {
   return is_aura_mus_client;
 }
 
+#if defined(USE_AURA)
+void PlatformTestHelper::SimulateNativeDestroy(Widget* widget) {
+  delete widget->GetNativeView();
+}
+#endif
+
 }  // namespace views