Revert of mash: Fix MusPropertyMirrorAsh for owned properties; add test.

ash/public/cpp/mus_property_mirror_ash.cc

Index: ash/public/cpp/mus_property_mirror_ash.cc
diff --git a/ash/public/cpp/mus_property_mirror_ash.cc b/ash/public/cpp/mus_property_mirror_ash.cc
deleted file mode 100644
index 25ddc91fbe390511e6bfe7ebf109378addccc693..0000000000000000000000000000000000000000
--- a/ash/public/cpp/mus_property_mirror_ash.cc
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright 2017 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 "ash/public/cpp/mus_property_mirror_ash.h"
-
-#include "ash/public/cpp/window_properties.h"
-#include "ui/aura/client/aura_constants.h"
-
-namespace {
-
-template <typename T>
-void MirrorOwnedProperty(aura::Window* window,
-                         aura::Window* root_window,
-                         const aura::WindowProperty<T*>* key) {
-  T* value = window->GetProperty(key);
-  if (!value)
-    root_window->ClearProperty(key);
-  else
-    root_window->SetProperty(key, new T(*value));
-}
-
-}  // namespace
-
-namespace ash {
-
-MusPropertyMirrorAsh::MusPropertyMirrorAsh() {}
-MusPropertyMirrorAsh::~MusPropertyMirrorAsh() {}
-
-void MusPropertyMirrorAsh::MirrorPropertyFromWidgetWindowToRootWindow(
-    aura::Window* window,
-    aura::Window* root_window,
-    const void* key) {
-  if (key == kPanelAttachedKey) {
-    bool value = window->GetProperty(kPanelAttachedKey);
-    root_window->SetProperty(kPanelAttachedKey, value);
-  } else if (key == kShelfItemTypeKey) {
-    int32_t value = window->GetProperty(kShelfItemTypeKey);
-    root_window->SetProperty(kShelfItemTypeKey, value);
-  } else if (key == aura::client::kAppIconKey) {
-    MirrorOwnedProperty(window, root_window, aura::client::kAppIconKey);
-  } else if (key == aura::client::kAppIdKey) {
-    MirrorOwnedProperty(window, root_window, aura::client::kAppIdKey);
-  } else if (key == aura::client::kDrawAttentionKey) {
-    bool value = window->GetProperty(aura::client::kDrawAttentionKey);
-    root_window->SetProperty(aura::client::kDrawAttentionKey, value);
-  } else if (key == aura::client::kTitleKey) {
-    MirrorOwnedProperty(window, root_window, aura::client::kTitleKey);
-  } else if (key == aura::client::kWindowIconKey) {
-    MirrorOwnedProperty(window, root_window, aura::client::kWindowIconKey);
-  }
-}
-
-}  // namespace ash