remove ntp app install hint

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

Index: chrome/browser/ui/webui/ntp/new_tab_ui.h
diff --git a/chrome/browser/ui/webui/ntp/new_tab_ui.h b/chrome/browser/ui/webui/ntp/new_tab_ui.h
index 4708860e5de2f71f02b37573ce08842676956c81..1356ba23916a16063568f8c2c116bd7f40b6caf7 100644
--- a/chrome/browser/ui/webui/ntp/new_tab_ui.h
+++ b/chrome/browser/ui/webui/ntp/new_tab_ui.h
@@ -32,16 +32,6 @@ class NewTabUI : public content::WebUIController,
 
   static void RegisterUserPrefs(PrefService* prefs);
 
-  // Sets up any experiment in which the NTP might want to participate.
-  // The CWS footer link is one such example.
-  static void SetupFieldTrials();
-
-  // Returns whether or not to show the link to the CWS in the footer.
-  static bool ShouldShowWebStoreFooterLink();
-
-  // Returns whether or not to show the app install hint.
-  static bool ShouldShowAppInstallHint();
-
   // Returns whether or not to show apps pages.
   static bool ShouldShowApps();
 
@@ -141,6 +131,4 @@ class NewTabUI : public content::WebUIController,
   DISALLOW_COPY_AND_ASSIGN(NewTabUI);
 };
 
-extern const char kWebStoreLinkExperiment[];
-
 #endif  // CHROME_BROWSER_UI_WEBUI_NTP_NEW_TAB_UI_H_