remove ntp app install hint

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 daf0f062dced962cd65c856751d00de649a5a76b..2ad684e7e3400b354d7ffaf62c7edd9122127a7e 100644
--- a/chrome/browser/ui/webui/ntp/new_tab_ui.cc
+++ b/chrome/browser/ui/webui/ntp/new_tab_ui.cc
@@ -14,7 +14,6 @@
 #include "base/i18n/rtl.h"
 #include "base/lazy_instance.h"
 #include "base/memory/singleton.h"
-#include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/string_number_conversions.h"
 #include "base/threading/thread.h"
@@ -79,20 +78,8 @@ const char kLTRHtmlTextDirection[] = "ltr";
 
 static base::LazyInstance<std::set<const WebUIController*> > g_live_new_tabs;
 
-// Group IDs for the web store link field trial.
-int g_footer_group = 0;
-int g_hint_group = 0;
-
-bool WebStoreLinkExperimentGroupIs(int group) {
-  return base::FieldTrialList::TrialExists(kWebStoreLinkExperiment) &&
-      base::FieldTrialList::FindValue(kWebStoreLinkExperiment) == group;
-}
-
 }  // namespace
 
-// The Web Store footer experiment FieldTrial name.
-const char kWebStoreLinkExperiment[] = "WebStoreLinkExperiment";
-
 ///////////////////////////////////////////////////////////////////////////////
 // NewTabUI
 
@@ -286,35 +273,6 @@ void NewTabUI::RegisterUserPrefs(PrefService* prefs) {
 }
 
 // static
-void NewTabUI::SetupFieldTrials() {
-  scoped_refptr<base::FieldTrial> trial(
-      base::FieldTrialList::FactoryGetFieldTrial(
-          kWebStoreLinkExperiment, 1, "Disabled", 2025, 6, 1, NULL));
-
-  // Try to give the user a consistent experience, if possible.
-  if (base::FieldTrialList::IsOneTimeRandomizationEnabled())
-    trial->UseOneTimeRandomization();
-
-  // 33.3% in each group.
-  g_footer_group = trial->AppendGroup("FooterLink", 1);
-  g_hint_group = trial->AppendGroup("PlusIcon", 0);
-}
-
-// static
-bool NewTabUI::ShouldShowWebStoreFooterLink() {
-  const CommandLine* cli = CommandLine::ForCurrentProcess();
-  return cli->HasSwitch(switches::kEnableWebStoreLink) ||
-      WebStoreLinkExperimentGroupIs(g_footer_group);
-}
-
-// static
-bool NewTabUI::ShouldShowAppInstallHint() {
-  const CommandLine* cli = CommandLine::ForCurrentProcess();
-  return cli->HasSwitch(switches::kNtpAppInstallHint) ||
-      WebStoreLinkExperimentGroupIs(g_hint_group);
-}
-
-// static
 bool NewTabUI::ShouldShowApps() {
 #if defined(USE_ASH) || defined(OS_ANDROID)
   // Ash shows apps in app list thus should not show apps page in NTP4.