Layout panels on top of their launcher icons

ash/shell.cc

Index: ash/shell.cc
diff --git a/ash/shell.cc b/ash/shell.cc
index dcdf7147c6854101a79dafb75695814b689b9b06..e4b78425ab22811284c8e8196dd9185b766995ea 100644
--- a/ash/shell.cc
+++ b/ash/shell.cc
@@ -159,18 +159,9 @@ void CreateSpecialContainers(aura::RootWindow* root_window) {
       new ToplevelWindowEventFilter(always_on_top_container));
   SetChildWindowVisibilityChangesAnimated(always_on_top_container);
 
-  aura::Window* panel_container = CreateContainer(
-      internal::kShellWindowId_PanelContainer,
-      "PanelContainer",
-      non_lock_screen_containers);
-  if (CommandLine::ForCurrentProcess()->
-      HasSwitch(switches::kAuraPanelManager)) {
-    internal::PanelLayoutManager* layout_manager =
-        new internal::PanelLayoutManager(panel_container);
-    panel_container->SetEventFilter(
-        new internal::PanelWindowEventFilter(panel_container, layout_manager));
-    panel_container->SetLayoutManager(layout_manager);
-  }
+  CreateContainer(internal::kShellWindowId_PanelContainer,
+                  "PanelContainer",
+                  non_lock_screen_containers);
 
   CreateContainer(internal::kShellWindowId_LauncherContainer,
                   "LauncherContainer",
@@ -739,6 +730,7 @@ void Shell::Init() {
   monitor_controller_.reset(new internal::MonitorController);
 }
 
+
 aura::Window* Shell::GetContainer(int container_id) {
   return const_cast<aura::Window*>(
       const_cast<const Shell*>(this)->GetContainer(container_id));
@@ -826,6 +818,8 @@ void Shell::CreateLauncher() {
 
   launcher_->SetFocusCycler(focus_cycler_.get());
   shelf_->SetLauncher(launcher_.get());
+  if (panel_layout_manager_ != NULL)
+    panel_layout_manager_->SetLauncher(launcher_.get());
 
   launcher_->widget()->Show();
 }
@@ -873,6 +867,19 @@ void Shell::InitLayoutManagers() {
   int index = user_wallpaper_delegate_->GetUserWallpaperIndex();
   desktop_background_controller_->SetDesktopBackgroundImageMode(
       GetWallpaper(index), GetWallpaperInfo(index).layout);
+
+  // Create Panel layout manager
+  if (CommandLine::ForCurrentProcess()->
+      HasSwitch(switches::kAuraPanelManager)) {
+    aura::Window* panel_container = GetContainer(
+        internal::kShellWindowId_PanelContainer);
+    panel_layout_manager_ =
+        new internal::PanelLayoutManager(panel_container);
+    panel_container->SetEventFilter(
+        new internal::PanelWindowEventFilter(
+            panel_container, panel_layout_manager_));
+    panel_container->SetLayoutManager(panel_layout_manager_);
+  }
 }
 
 void Shell::DisableWorkspaceGridLayout() {