[Payments] Set cached manifest expiration date

components/payments/android/payment_method_manifest_table.h

Index: components/payments/android/payment_method_manifest_table.h
diff --git a/components/payments/android/payment_method_manifest_table.h b/components/payments/android/payment_method_manifest_table.h
index 0e1f5ef9c884e4fd19400c262d24fa2a525ab052..82c48dcadaea3ccdae3ed72cde67978f92616111 100644
--- a/components/payments/android/payment_method_manifest_table.h
+++ b/components/payments/android/payment_method_manifest_table.h
@@ -20,6 +20,8 @@ namespace payments {
 //                         supported web app in this payment method manifest.
 //                         Note that a payment method manifest might contain
 //                         multiple supported web apps ids.
+//
+//  expire_date            The expire date in seconds.

[please use gerrit instead, 2017/04/27 15:45:18]

Which epoch? Windows epoch starts in 1600. Unix epoch starts in 1971.

[gogerald1, 2017/04/27 18:08:39]

Done.

 //  method_name            The method name.
 //  web_app_id             The supported web app id.
 //                         (WebAppManifestSection.id).