Autofill wallet -- handle several classes of error in unmasking prompt.

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 e8898ed3b73a8f21c4da6945c60e52f866ef3893..1ade4bac952047f8574c053115d9c899938c8ae8 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -11179,6 +11179,15 @@ Chrome ran out of memory.
       <message name="IDS_AUTOFILL_CARD_UNMASK_PROMPT_STORAGE_CHECKBOX" desc="Text for checkbox in card unmasking dialog that allows user to store a Wallet card on their local device. If checked, the dialog won't show up again for the given credit card.">
         Don't ask again for this card
       </message>
+      <message name="IDS_AUTOFILL_CARD_UNMASK_PROMPT_ERROR_TRY_AGAIN" desc="Error message that encourages the user to try to re-enter their credit card CVC after a previous failed attempt.">
+        There was a problem verifying your card. Check your information and try again.
+      </message>
+      <message name="IDS_AUTOFILL_CARD_UNMASK_PROMPT_ERROR_PERMANENT" desc="Error message to show when a credit card cannot be verified and the user isn't allowed to retry.">
+        Chrome was unable to verify your card at this time. Please try again later.
+      </message>
+      <message name="IDS_AUTOFILL_CARD_UNMASK_PROMPT_ERROR_NETWORK" desc="Error message to show when a credit card cannot be verified because Wallet servers can't be reached.">
+        There was a problem verifying your card. Check your internet connection and try again.
+      </message>
 
       <message name="IDS_APPEARANCE_GROUP_NAME" desc="The title of the appearance group">
         Appearance