Don't show the apps page on the NTP if the app launcher is installed.

chrome/browser/ui/webui/ntp/new_tab_ui.cc

Index: chrome/browser/ui/webui/ntp/new_tab_ui.cc
diff --git a/chrome/browser/ui/webui/ntp/new_tab_ui.cc b/chrome/browser/ui/webui/ntp/new_tab_ui.cc
index e5b20aa647fa2ec94a753b3f48aa8684bc26335e..fb5cad62675f9eef580147a4d6e8340e83b5c463 100644
--- a/chrome/browser/ui/webui/ntp/new_tab_ui.cc
+++ b/chrome/browser/ui/webui/ntp/new_tab_ui.cc
@@ -19,6 +19,7 @@
 #include "base/threading/thread.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/defaults.h"
+#include "chrome/browser/extensions/app_launcher.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sessions/session_types.h"
@@ -294,13 +295,12 @@ void NewTabUI::RegisterUserPrefs(PrefServiceSyncable* prefs) {
 
 // static
 bool NewTabUI::ShouldShowApps() {
-#if defined(USE_ASH) || defined(OS_ANDROID)
+#if defined(OS_ANDROID)
   // Ash shows apps in app list thus should not show apps page in NTP4.
   // Android does not have apps.
   return false;
 #else
-  return !CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kShowAppListShortcut);
+  return !extensions::IsAppLauncherEnabled();
 #endif
 }