[WebPayments] Start populating the Payment Sheet.

components/autofill_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <grit-part>
 
   <if expr="not is_ios">
     <message name="IDS_AUTOFILL_CLEAR_FORM_MENU_ITEM" desc="The entry in the suggestions dropdown that clears an auto-filled form.">
       Clear form
     </message>
   </if>
   <if expr="is_ios">
     <message name="IDS_AUTOFILL_CLEAR_FORM_MENU_ITEM" desc="iOS: The entry in the suggestions keyboard accessory that clears an auto-filled form.">
@@ skipping 144 matching lines @@
    </message>
   </if>
   <if expr="not _google_chrome">
     <message name="IDS_AUTOFILL_OPTIONS_POPUP" desc="The label of the text displayed in the Autofill popup to direct the user to the Autofill settings UI.">
       Chromium Autofill settings...
     </message>
   </if>
 
   <if expr="_google_chrome">
     <message name="IDS_AUTOFILL_CREDIT_CARD_OPTIONS_POPUP" desc="The label of the text displayed in the Autofill Credit Card popup to direct the user to the Autofill settings UI.">
-     Chrome Autofill settings...    
+     Chrome Autofill settings...
     </message>
   </if>
   <if expr="not _google_chrome">
-    <message name="IDS_AUTOFILL_CREDIT_CARD_OPTIONS_POPUP" desc="The label of the text displayed in the Autofill Credit Card popup to direct the user to the Autofill settings UI.">    
+    <message name="IDS_AUTOFILL_CREDIT_CARD_OPTIONS_POPUP" desc="The label of the text displayed in the Autofill Credit Card popup to direct the user to the Autofill settings UI.">
       Chromium Autofill settings...
     </message>
-  </if>    
+  </if>
 
   <message name="IDS_AUTOFILL_OPTIONS_CONTENT_DESCRIPTION" desc="The text verbalised by a screen reader for the button that directs the user to the Autofill settings UI. This string is not displayed.">
     settings
   </message>
 
   <message name="IDS_AUTOFILL_CREDIT_CARD_NOT_SUPPORTED_BY_WALLET" desc="Message displayed to user when user entered a credit card number that is not supported by Google Payments.">
     This type of card is not supported by Google Payments. Please select a different card.
   </message>
   <message name="IDS_AUTOFILL_CREDIT_CARD_NOT_SUPPORTED_BY_WALLET_FOR_MERCHANT" desc="Message displayed to user when user entered a credit card number that is not supported by Google Payments for the particular merchant site the user is on.">
     This type of card is not supported by Google Payments for this merchant. Please select a different card.
@@ skipping 157 matching lines @@
   <message name="IDS_AUTOFILL_CARD_UNMASK_EXPIRATION_DATE_SEPARATOR" desc="Separator for a credit card expiration date, e.g. the slash in 05/16." formatter_data="android_java">
     /
   </message>
   <message name="IDS_AUTOFILL_CARD_UNMASK_NEW_CARD_LINK" desc="Text for link that prompts user to update their credit card after it may have been re-issued." formatter_data="android_java">
     New card?
   </message>
   <message name="IDS_AUTOFILL_DIALOG_PLACEHOLDER_CVC" desc="The placeholder/label text for credit card verification code in the requestAutocomplete dialog.">
     CVC
   </message>
 
+  <!-- Payment Request -->
+  <message name="IDS_PAYMENT_REQUEST_ORDER_SUMMARY_SECTION_NAME" desc="The name of the Order Summary section in the Payment Sheet of the Payment Request dialog.">
+    Order summary
+  </message>
+  <message name="IDS_PAYMENT_REQUEST_ORDER_SUMMARY_SECTION_TOTAL_FORMAT" desc="The format specifier of the Total label in the Order Summary section of the Payment Sheet of the Payment Request dialog.">
+    <ph name="TOTAL_LABEL">$1<ex>Total</ex></ph> <ph name="CURRENCY_CODE">$2<ex>USD</ex></ph> <ph name="FORMATTED_TOTAL_AMOUNT">$3<ex>$ 12.34</ex></ph>
+  </message>
 </grit-part>