Move the panel to the root window where the mouse click occurred.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_browser.cc

Index: chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_browser.cc
diff --git a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_browser.cc b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_browser.cc
index a6c27a303c8b16e5dd4e485f94503cc67d1d08aa..04cad22317916318194d9471783d8c808b21be5e 100644
--- a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_browser.cc
+++ b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_browser.cc
@@ -102,7 +102,7 @@ class AppShortcutLauncherItemController : public LauncherItemController {
     // TODO: maybe should treat as unpin?
   }
 
-  virtual void Clicked() OVERRIDE {
+  virtual void Clicked(const ui::Event& event) OVERRIDE {
     Activate();
   }
 
@@ -810,9 +810,9 @@ void ChromeLauncherControllerPerBrowser::OnBrowserShortcutClicked(
 
 void ChromeLauncherControllerPerBrowser::ItemClicked(
     const ash::LauncherItem& item,
-    int event_flags) {
+    const ui::Event& event) {
   DCHECK(HasItemController(item.id));
-  id_to_item_controller_map_[item.id]->Clicked();
+  id_to_item_controller_map_[item.id]->Clicked(event);
 }
 
 int ChromeLauncherControllerPerBrowser::GetBrowserShortcutResourceId() {