Update Previews infbar accessibility string

chrome/android/java/strings/android_chrome_strings.grd

Index: chrome/android/java/strings/android_chrome_strings.grd
diff --git a/chrome/android/java/strings/android_chrome_strings.grd b/chrome/android/java/strings/android_chrome_strings.grd
index ac75347ca939ca61c04255f1eda336ed6cbd7c3f..391b6063cdf2aba43a3e7b032800a41b3af3b7ea 100644
--- a/chrome/android/java/strings/android_chrome_strings.grd
+++ b/chrome/android/java/strings/android_chrome_strings.grd
@@ -1541,6 +1541,9 @@ To obtain new licenses, connect to the internet and play your downloaded content
       <message name="IDS_BOTTOM_BAR_SCREEN_POSITION" desc="Accessibility label to inform users about the InfoBar location">
         Options available near bottom of the screen
       </message>
+      <message name="IDS_PREVIEWS_INFOBAR_ACCESSIBILITY_TITLE" desc="Accessibility label to inform users about the InfoBar notifying the user that mobile data usage was reduced and the page was shown faster by showing a preview version of the web page instead of the full page.">
+        Simplified page to save data and load faster.
+      </message>
 
       <!-- DuplicateDownloadInfoBar -->
       <message name="IDS_DUPLICATE_DOWNLOAD_INFOBAR_TEXT" desc="Prompt text for the confirmation dialog asking whether the user really wants to download a file when there already exists a file with the same name">