[Web Payments] Add inline items to the Order Summary section.

components/payments_strings.grdp

Index: components/payments_strings.grdp
diff --git a/components/payments_strings.grdp b/components/payments_strings.grdp
index 5046856ff6f6974dd8e6490cc94c9c70c3af286d..e6614190375625f56809bfa7e0e3c4105f30619b 100644
--- a/components/payments_strings.grdp
+++ b/components/payments_strings.grdp
@@ -176,6 +176,9 @@
   <message name="IDS_PAYMENT_REQUEST_ORDER_SUMMARY_SHEET_TOTAL_FORMAT" desc="The format specifier of the Total label in the Order Summary Sheet of the Payment Request dialog.">
     <ph name="CURRENCY_CODE">$1<ex>USD</ex></ph> <ph name="FORMATTED_TOTAL_AMOUNT">$2<ex>$ 12.34</ex></ph>
   </message>
+  <message name="IDS_PAYMENT_REQUEST_ORDER_SUMMARY_MORE_ITEMS" desc="The label in the Order Summary section of the Payment Sheet that indicates how many display items are hidden.">
+    <ph name="ITEM_COUNT">$1<ex>2</ex></ph> more items...
+  </message>
   <message name="IDS_PAYMENT_REQUEST_SHIPPING_SECTION_NAME" desc="The name of the Shipping Address section in the Payment Sheet of the Payment Request dialog.">
     Shipping address
   </message>