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

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

Index: chrome/browser/ui/webui/ntp/ntp_resource_cache.cc
diff --git a/chrome/browser/ui/webui/ntp/ntp_resource_cache.cc b/chrome/browser/ui/webui/ntp/ntp_resource_cache.cc
index cd6dbb789865fb8db979c135d333752b86daf837..8b0d00f0da75b9c0e81fccd77e2e9ca15a7d0520 100644
--- a/chrome/browser/ui/webui/ntp/ntp_resource_cache.cc
+++ b/chrome/browser/ui/webui/ntp/ntp_resource_cache.cc
@@ -192,6 +192,12 @@ bool NTPResourceCache::NewTabCacheNeedsRefresh() {
     return true;
   }
 #endif
+  bool should_show_apps_page = profile_->GetPrefs()->GetBoolean(
+      prefs::kNtpShouldShowAppsPage);
+  if (should_show_apps_page != should_show_apps_page_) {
+    should_show_apps_page_ = should_show_apps_page;
+    return true;
+  }
   return false;
 }
 
@@ -312,6 +318,8 @@ void NTPResourceCache::CreateNewTabHTML() {
   DictionaryValue load_time_data;
   load_time_data.SetBoolean("bookmarkbarattached",
       prefs->GetBoolean(prefs::kShowBookmarkBar));
+  load_time_data.SetBoolean("showApps",
+      prefs->GetBoolean(prefs::kNtpShouldShowAppsPage));
   load_time_data.SetBoolean("hasattribution",
       ThemeServiceFactory::GetForProfile(profile_)->HasCustomImage(
           IDR_THEME_NTP_ATTRIBUTION));
@@ -379,7 +387,6 @@ void NTPResourceCache::CreateNewTabHTML() {
       l10n_util::GetStringUTF16(IDS_NEW_TAB_APP_INSTALL_HINT_LABEL));
   load_time_data.SetBoolean("isDiscoveryInNTPEnabled",
       NewTabUI::IsDiscoveryInNTPEnabled());
-  load_time_data.SetBoolean("showApps", NewTabUI::ShouldShowApps());
   load_time_data.SetString("collapseSessionMenuItemText",
       l10n_util::GetStringUTF16(IDS_NEW_TAB_OTHER_SESSIONS_COLLAPSE_SESSION));
   load_time_data.SetString("expandSessionMenuItemText",