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

chrome/browser/prefs/browser_prefs.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/prefs/browser_prefs.h"
 
 #include "chrome/browser/about_flags.h"
 #include "chrome/browser/accessibility/invert_bubble_prefs.h"
 #include "chrome/browser/autofill/autofill_manager.h"
 #include "chrome/browser/background/background_mode_manager.h"
 #include "chrome/browser/bookmarks/bookmark_prompt_prefs.h"
 #include "chrome/browser/bookmarks/bookmark_utils.h"
 #include "chrome/browser/browser_shutdown.h"
 #include "chrome/browser/chrome_content_browser_client.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 #include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/download/download_prefs.h"
 #include "chrome/browser/extensions/api/commands/command_service.h"
 #include "chrome/browser/extensions/api/tabs/tabs_api.h"
+#include "chrome/browser/extensions/app_launcher.h"
 #include "chrome/browser/extensions/component_loader.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/extension_web_ui.h"
 #include "chrome/browser/external_protocol/external_protocol_handler.h"
 #include "chrome/browser/first_run/first_run.h"
 #include "chrome/browser/geolocation/geolocation_prefs.h"
 #include "chrome/browser/google/google_url_tracker.h"
 #include "chrome/browser/google/google_url_tracker_factory.h"
 #include "chrome/browser/intents/web_intents_util.h"
 #include "chrome/browser/intranet_redirect_detector.h"
@@ skipping 114 matching lines @@
 
 namespace chrome {
 
 void RegisterLocalState(PrefServiceSimple* local_state) {
   // Prefs in Local State.
   local_state->RegisterIntegerPref(prefs::kMultipleProfilePrefMigration, 0);
 
   // Please keep this list alphabetized.
   browser_shutdown::RegisterPrefs(local_state);
   chrome::RegisterScreenshotPrefs(local_state);
+  extensions::app_launcher::RegisterPrefs(local_state);
   ExternalProtocolHandler::RegisterPrefs(local_state);
   FlagsUI::RegisterPrefs(local_state);
   geolocation::RegisterPrefs(local_state);
   IntranetRedirectDetector::RegisterPrefs(local_state);
   KeywordEditorController::RegisterPrefs(local_state);
   MetricsLog::RegisterPrefs(local_state);
   MetricsService::RegisterPrefs(local_state);
   PrefProxyConfigTrackerImpl::RegisterPrefs(local_state);
   ProfileInfoCache::RegisterPrefs(local_state);
   ProfileManager::RegisterPrefs(local_state);
@@ skipping 219 matching lines @@
     }
     local_state->ClearPref(prefs::kLastPromptedGoogleURL);
 
     current_version |= GOOGLE_URL_TRACKER_PREFS;
     local_state->SetInteger(prefs::kMultipleProfilePrefMigration,
                             current_version);
   }
 }
 
 }  // namespace chrome