Add message and Help Center link to the chooser UI

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 430376412f23a82413293fec4cdf86317c23f71b..a8f9f3d4ed90e2def77b2624adbc292352221461 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -14563,6 +14563,14 @@ Please check your email at <ph name="ACCOUNT_EMAIL">$2<ex>jane.doe@gmail.com</ex
       <message name="IDS_CHOOSER_BUBBLE_CANCEL_BUTTON_TEXT" desc="The text that is shown on the cancel button in the chooser popup.">
         Cancel
       </message>
+      <!-- Chooser Bubble No Device Text -->
+      <message name="IDS_CHOOSER_BUBBLE_NO_DEVICE_TEXT" desc="This text is shown at the bottom of the chooser popup.">
+        Not seeing your device?
+      </message>
+      <!-- Chooser Bubble Get Help Link Text -->
+      <message name="IDS_CHOOSER_BUBBLE_GET_HELP_LINK_TEXT" desc="This text is shown at the bottom of the chooser popup and links to a Help Center URL.">
+        Get help
+      </message>
     </if>
 
     <if expr="is_android">