1 files changed, 29 insertions, 0 deletions
diff --git a/ui/wm/public/activation_change_observer.cc b/ui/wm/public/activation_change_observer.cc
new file mode 100644
index 0000000..7fcbb7a
--- /dev/null
+++ b/ui/wm/public/activation_change_observer.cc
@@ -0,0 +1,29 @@
+// 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 "ui/wm/public/activation_change_observer.h"
+
+#include "ui/aura/window.h"
+#include "ui/aura/window_property.h"
+
+DECLARE_WINDOW_PROPERTY_TYPE(aura::client::ActivationChangeObserver*)
+
+namespace aura {
+namespace client {
+
+DEFINE_LOCAL_WINDOW_PROPERTY_KEY(
+    ActivationChangeObserver*, kActivationChangeObserverKey, NULL);
+
+void SetActivationChangeObserver(
+    Window* window,
+    ActivationChangeObserver* observer) {
+  window->SetProperty(kActivationChangeObserverKey, observer);
+}
+
+ActivationChangeObserver* GetActivationChangeObserver(Window* window) {
+  return window ? window->GetProperty(kActivationChangeObserverKey) : NULL;
+}
+
+}  // namespace client
+}  // namespace aura