Add "open as window" menu item to NTP app menu.

chrome/browser/dom_ui/app_launcher_handler.cc

Index: chrome/browser/dom_ui/app_launcher_handler.cc
diff --git a/chrome/browser/dom_ui/app_launcher_handler.cc b/chrome/browser/dom_ui/app_launcher_handler.cc
index f55052576f9365503d58708fa7c16d808294bb80..add08cb768a8a5bb289f8fc892d52d5ac9f91a35 100644
--- a/chrome/browser/dom_ui/app_launcher_handler.cc
+++ b/chrome/browser/dom_ui/app_launcher_handler.cc
@@ -248,8 +248,19 @@ void AppLauncherHandler::HandleLaunchApp(const ListValue* args) {
     old_contents = browser->GetSelectedTabContents();
 
   AnimateAppIcon(extension, rect);
+
+  extension_misc::LaunchContainer launch_container =
+      extension->launch_container();
+  ExtensionPrefs::LaunchType prefs_launch_type =
+      extensions_service_->extension_prefs()->GetLaunchType(extension_id);
+
+  // If the user chose to open in a window, change the container type.
+  if (prefs_launch_type == ExtensionPrefs::LAUNCH_WINDOW) {
+    launch_container = extension_misc::LAUNCH_WINDOW;
+  }
+
   TabContents* new_contents = Browser::OpenApplication(
-      profile, extension, extension->launch_container(), old_contents);
+      profile, extension, launch_container, old_contents);
 
   if (new_contents != old_contents && browser->tab_count() > 1)
     browser->CloseTabContents(old_contents);
@@ -310,7 +321,7 @@ void AppLauncherHandler::HandleHideAppsPromo(const ListValue* args) {
   extensions_service_->default_apps()->SetPromoHidden();
 }
 
-//static
+// static
 void AppLauncherHandler::RecordWebStoreLaunch(bool promo_active) {
   if (!promo_active) return;
 
@@ -319,7 +330,7 @@ void AppLauncherHandler::RecordWebStoreLaunch(bool promo_active) {
                             extension_misc::PROMO_BUCKET_BOUNDARY);
 }
 
-//static
+// static
 void AppLauncherHandler::RecordAppLaunch(bool promo_active) {
   // TODO(jstritar): record app launches that occur when the promo is not
   // active using a different histogram.