Update content desciption string for bookmark button in NTP toolbar

chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageToolbar.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageToolbar.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageToolbar.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageToolbar.java
index 95dad06bb3e3c022f6bbf6323484847644025b2d..4774642564835440dcc89c7206ebe7d2c00cc9a8 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageToolbar.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageToolbar.java
@@ -43,8 +43,12 @@ public class NewTabPageToolbar extends LinearLayout {
     protected void onFinishInflate() {
         mBookmarksButton = initButton(R.id.bookmarks_button, R.drawable.btn_star);
         mRecentTabsButton = initButton(R.id.recent_tabs_button, R.drawable.btn_recents);
-        ((TextView) mBookmarksButton.getChildAt(0)).setText(OfflinePageBridge.isEnabled()
-                ? R.string.offline_pages_ntp_button_name : R.string.ntp_bookmarks);
+        if (OfflinePageBridge.isEnabled()) {
+            ((TextView) mBookmarksButton.getChildAt(0)).setText(
+                    R.string.offline_pages_ntp_button_name);
+            ((TextView) mBookmarksButton.getChildAt(0)).setContentDescription(
+                    getResources().getString(R.string.offline_pages_ntp_button_accessibility));
+        }
     }
 
     private ViewGroup initButton(int buttonId, int drawableId) {