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

chrome/browser/ui/views/frame/browser_view.cc

Index: chrome/browser/ui/views/frame/browser_view.cc
diff --git a/chrome/browser/ui/views/frame/browser_view.cc b/chrome/browser/ui/views/frame/browser_view.cc
index 8303094f0554aa0d1dbecc29e64393492b30f8a3..b98b07cce3c301a7a49bf5cea516c447441a768b 100644
--- a/chrome/browser/ui/views/frame/browser_view.cc
+++ b/chrome/browser/ui/views/frame/browser_view.cc
@@ -624,6 +624,11 @@ void BrowserView::Show() {
 void BrowserView::ShowInactive() {
   if (!frame_->IsVisible())
     frame_->ShowInactive();
+
+#if defined(USE_AURA)
+  if (!icon_updater_.get())
+    icon_updater_.reset(LauncherUpdater::Create(browser_.get()));
+#endif  // defined(USE_AURA)
 }
 
 void BrowserView::SetBounds(const gfx::Rect& bounds) {