Add "create Application Shortcut" to the app menu on NTP.

chrome/browser/cocoa/browser_window_cocoa.mm

Index: chrome/browser/cocoa/browser_window_cocoa.mm
diff --git a/chrome/browser/cocoa/browser_window_cocoa.mm b/chrome/browser/cocoa/browser_window_cocoa.mm
index 63cb997c8c584b65121d542f66e459c23290edf9..bee78f20e22a78bb3648d2112af6f47f697a450e 100644
--- a/chrome/browser/cocoa/browser_window_cocoa.mm
+++ b/chrome/browser/cocoa/browser_window_cocoa.mm
@@ -549,7 +549,13 @@ bool BrowserWindowCocoa::HandleKeyboardEventInternal(NSEvent* event) {
   return [event_window redispatchKeyEvent:event];
 }
 
-void BrowserWindowCocoa::ShowCreateShortcutsDialog(TabContents* tab_contents) {
+void BrowserWindowCocoa::ShowCreateWebAppShortcutsDialog(
+    TabContents* tab_contents) {
+  NOTIMPLEMENTED();
+}
+
+void BrowserWindowCocoa::ShowCreateChromeAppShortcutsDialog(
+    Profile* profile, const Extension* extension) {
   NOTIMPLEMENTED();
 }