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

chrome/browser/tab_contents/tab_contents.cc

Index: chrome/browser/tab_contents/tab_contents.cc
diff --git a/chrome/browser/tab_contents/tab_contents.cc b/chrome/browser/tab_contents/tab_contents.cc
index 5f091ee675ed18833da34cfb718b47257cb93bc0..cfa1ac00be62906643a4ec12b6b00af5364441f2 100644
--- a/chrome/browser/tab_contents/tab_contents.cc
+++ b/chrome/browser/tab_contents/tab_contents.cc
@@ -598,12 +598,13 @@ void TabContents::SetExtensionAppById(const std::string& extension_app_id) {
     return;
 
   ExtensionsService* extension_service = profile()->GetExtensionsService();
-  if (extension_service && extension_service->is_ready()) {
-    const Extension* extension =
-        extension_service->GetExtensionById(extension_app_id, false);
-    if (extension)
-      SetExtensionApp(extension);
-  }
+  if (!extension_service || !extension_service->is_ready())
+    return;
+
+  const Extension* extension =
+      extension_service->GetExtensionById(extension_app_id, false);
+  if (extension)
+    SetExtensionApp(extension);
 }
 
 SkBitmap* TabContents::GetExtensionAppIcon() {