Changes DesktopNativeWidgetAura to not call InitHost or window->Show()

ui/views/mus/desktop_window_tree_host_mus_unittest.cc

+// Copyright 2016 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 "ui/views/mus/desktop_window_tree_host_mus.h"
+
+#include "base/memory/ptr_util.h"
+#include "ui/aura/window.h"
+#include "ui/views/test/views_test_base.h"
+#include "ui/views/widget/widget.h"
+#include "ui/views/widget/widget_delegate.h"
+
+namespace views {
+
+class DesktopWindowTreeHostMusTest : public ViewsTestBase {
+ public:
+  DesktopWindowTreeHostMusTest() {}
+  ~DesktopWindowTreeHostMusTest() override {}
+
+  // Creates a test widget. Takes ownership of |delegate|.
+  std::unique_ptr<Widget> CreateWidget(WidgetDelegate* delegate) {
+    std::unique_ptr<Widget> widget = base::MakeUnique<Widget>();
+    Widget::InitParams params = CreateParams(Widget::InitParams::TYPE_WINDOW);
+    params.delegate = delegate;
+    params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
+    params.bounds = gfx::Rect(0, 1, 111, 123);
+    widget->Init(params);
+    return widget;
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(DesktopWindowTreeHostMusTest);
+};
+
+TEST_F(DesktopWindowTreeHostMusTest, Visibility) {
+  std::unique_ptr<Widget> widget(CreateWidget(nullptr));
+  EXPECT_FALSE(widget->IsVisible());
+  EXPECT_FALSE(widget->GetNativeView()->IsVisible());
+  // It's important the parent is also hidden as this value is sent to the
+  // server.
+  EXPECT_FALSE(widget->GetNativeView()->parent()->IsVisible());
+  widget->Show();
+  EXPECT_TRUE(widget->IsVisible());
+  EXPECT_TRUE(widget->GetNativeView()->IsVisible());
+  EXPECT_TRUE(widget->GetNativeView()->parent()->IsVisible());
+  widget->Hide();
+  EXPECT_FALSE(widget->IsVisible());
+  EXPECT_FALSE(widget->GetNativeView()->IsVisible());
+  EXPECT_FALSE(widget->GetNativeView()->parent()->IsVisible());
+}
+
+}  // namespace views