📰 Add user action for the first time the UI is shown

chrome/android/java/src/org/chromium/chrome/browser/preferences/ChromePreferenceManager.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/ChromePreferenceManager.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/ChromePreferenceManager.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/ChromePreferenceManager.java
index 609ff7ce17277bfd18739db7ec7215c22f68a46d..323ab58c12a45da528d2c2684e43df339f21fb3b 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/preferences/ChromePreferenceManager.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/ChromePreferenceManager.java
@@ -50,6 +50,8 @@
 
     private static final String CHROME_DEFAULT_BROWSER = "applink.chrome_default_browser";
 
+    private static final String CONTENT_SUGGESTIONS_SHOWN_KEY = "content_suggestions_shown";
+
     private static final String NTP_SIGNIN_PROMO_DISMISSED = "ntp.signin_promo_dismissed";
     private static final String NTP_ANIMATION_RUN_COUNT = "ntp_recycler_view_animation_run_count";
 
@@ -416,6 +418,16 @@ public boolean isChromeHomeEnabled() {
         return mSharedPreferences.getBoolean(CHROME_HOME_ENABLED_KEY, false);
     }
 
+    /** Marks that the content suggestions surface has been shown. */
+    public void setSuggestionsSurfaceShown() {
+        writeBoolean(CONTENT_SUGGESTIONS_SHOWN_KEY, true);
+    }
+
+    /** Returns whether the content suggestions surface has ever been shown. */
+    public boolean getSuggestionsSurfaceShown() {
+        return mSharedPreferences.getBoolean(CONTENT_SUGGESTIONS_SHOWN_KEY, false);
+    }
+
     /**
      * Writes the given int value to the named shared preference.
      * @param key The name of the preference to modify.