Layout panels on top of their launcher icons

ash/launcher/launcher_icons_observer.h

Index: ash/launcher/launcher_icons_observer.h
diff --git a/ash/launcher/launcher_icons_observer.h b/ash/launcher/launcher_icons_observer.h
new file mode 100644
index 0000000000000000000000000000000000000000..0878d151830756efc33b2999dace66d02748243b
--- /dev/null
+++ b/ash/launcher/launcher_icons_observer.h
@@ -0,0 +1,22 @@
+
+// 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.
+
+#ifndef ASH_LAUNCHER_LAUNCHER_ICONS_OBSERVER_H_
+#define ASH_LAUNCHER_LAUNCHER_ICONS_OBSERVER_H_
+#pragma once
+
+namespace ash {
+
+class ASH_EXPORT LauncherIconsObserver {
+ public:
+  virtual void OnLauncherIconPositionsChanged() = 0;

[sky, 2012/04/03 20:39:37]

Document the conditions under which this is invoked.

[Dmitry Lomov (no reviews), 2012/04/03 20:50:07]

Will do

+
+ protected:
+  virtual ~LauncherIconsObserver() {}
+};
+
+} // namespace ash
+
+#endif  // ASH_LAUNCHER_LAUNCHER_ICONS_OBSERVER_H_