📰 Refresh the visiblity of AllDismissed when items change

chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/SignInPromo.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/SignInPromo.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/SignInPromo.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/SignInPromo.java
index eafab2d4f6ccf664ba95561fc2b512d3de3ec3c7..6ad09d780b1fb9cbe7df840821935dcda256c609 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/SignInPromo.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/SignInPromo.java
@@ -11,6 +11,7 @@
 import android.support.v7.widget.RecyclerView;
 
 import org.chromium.base.ContextUtils;
+import org.chromium.base.VisibleForTesting;
 import org.chromium.base.metrics.RecordUserAction;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ntp.NewTabPage.DestructionObserver;
@@ -125,7 +126,7 @@ public boolean isShown() {
     }
 
     /** Attempts to show the sign in promo. If the user dismissed it before, it will not be shown.*/
-    public void maybeShow() {
+    private void maybeShow() {
         if (mVisible) return;
         mVisible = true;
 
@@ -136,7 +137,7 @@ public void maybeShow() {
     }
 
     /** Hides the sign in promo. */
-    public void hide() {
+    private void hide() {
         if (!mVisible) return;
         mVisible = false;
 
@@ -154,7 +155,8 @@ public void dismiss() {
         mObserver.unregister();
     }
 
-    private class SigninObserver
+    @VisibleForTesting
+    class SigninObserver
             implements SignInStateObserver, SignInAllowedObserver, DestructionObserver {
         private final SigninManager mSigninManager;
         private final NewTabPageAdapter mAdapter;