Layout panels on top of their launcher icons

ash/launcher/launcher.cc

Index: ash/launcher/launcher.cc
diff --git a/ash/launcher/launcher.cc b/ash/launcher/launcher.cc
index 551644277b3d582cb0cd2e9be499491718064b70..0276f005daeed15d290da6bc06d8116e4615549b 100644
--- a/ash/launcher/launcher.cc
+++ b/ash/launcher/launcher.cc
@@ -186,6 +186,14 @@ gfx::Rect Launcher::GetScreenBoundsOfItemIconForWindow(aura::Window* window) {
                    bounds.height());
 }
 
+void Launcher::AddIconsObserver(LauncherIconsObserver* observer) {
+  launcher_view_->AddIconsObserver(observer);
+}
+
+void Launcher::RemoveIconsObserver(LauncherIconsObserver* observer) {
+  launcher_view_->RemoveIconsObserver(observer);
+}
+
 bool Launcher::IsShowingMenu() const {
   return launcher_view_->IsShowingMenu();
 }