Launch panels as popup windows in Aura, and add separate launcher icon logic for panels.

chrome/browser/ui/views/ash/launcher/launcher_updater.h

Index: chrome/browser/ui/views/ash/launcher/launcher_updater.h
diff --git a/chrome/browser/ui/views/ash/launcher/launcher_updater.h b/chrome/browser/ui/views/ash/launcher/launcher_updater.h
index b38c9852982d5337576f5355a0f63b5e995bf41e..2e0d4c2570d04bcd594dc91b274fb0a52dc25583 100644
--- a/chrome/browser/ui/views/ash/launcher/launcher_updater.h
+++ b/chrome/browser/ui/views/ash/launcher/launcher_updater.h
@@ -34,6 +34,7 @@ class LauncherUpdater : public TabStripModelObserver {
  public:
   enum Type {
     TYPE_APP,
+    TYPE_PANEL,
     TYPE_TABBED
   };
 
@@ -55,6 +56,8 @@ class LauncherUpdater : public TabStripModelObserver {
 
   TabStripModel* tab_model() { return tab_model_; }
 
+  Type type() const { return type_; }
+
   TabContentsWrapper* GetTab(ash::LauncherID id);
 
   // TabStripModel overrides: