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

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

Index: chrome/browser/ui/views/aura/launcher/launcher_updater.h
diff --git a/chrome/browser/ui/views/aura/launcher/launcher_updater.h b/chrome/browser/ui/views/aura/launcher/launcher_updater.h
index 6c2170ac6fc4a430c91a5e9176bda6a913ca7136..dc651fcd2831a1968cc0124df78fa0fc23e233c3 100644
--- a/chrome/browser/ui/views/aura/launcher/launcher_updater.h
+++ b/chrome/browser/ui/views/aura/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: