EarlGrey tests for Payment Request (base CL)

ios/chrome/app/strings/ios_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
 This file contains definition of resources that will be translated for each
 locale.  The strings in this file are specific to iOS.
 -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       output_all_resource_defines="false" source_lang_id="en" enc_check="möl">
   <outputs>
@@ skipping 954 matching lines @@
       </message>
       <message name="IDS_IOS_PAYMENT_REQUEST_SHIPPING_ADDRESS_SELECTION_ADD_BUTTON" desc="Label of the button to add a new shipping address [iOS only].">
         Add Address...
       </message>
       <message name="IDS_IOS_PAYMENT_REQUEST_PAYMENT_METHOD_HEADER" desc="Label of the header of the section which displays the options (available credit cards or payment apps) for satisfying a payment request [iOS only].">
         Payment
       </message>
       <message name="IDS_IOS_PAYMENT_REQUEST_PAY_BUTTON" desc="Label of the button to confirm that the user wishes to pay for a good or service [iOS only].">
         Pay
       </message>
+      <message name="IDS_IOS_ACCNAME_PAYMENT_REQUEST_PAY_BUTTON" desc="The accessible name for the button to confirm that the user wishes to pay for a good or service [iOS only].">

[Justin Donnelly, 2016/12/29 18:36:57]

Is this used? I didn't see it when looking through this CL. Regardless, I don't
think we should need it. The button already has a text label which will be used
for accessibility.

[Moe, 2017/01/03 17:42:19]

Done. It was being used in payment_request_view_controller.mm, but you're right.
It's not needed.

+        Pay
+      </message>
       <message name="IDS_IOS_PAYMENT_REQUEST_TITLE" desc="Title of the dialog that presents a request for payment for some good or service [iOS only].">
         Your Payment
       </message>
       <message name="IDS_IOS_PAYMENT_REQUEST_TOTAL_HEADER" desc="Label of the header of the section which displays the total charge for a payment request [iOS only].">
         Total
       </message>
       <message name="IDS_IOS_PHOTO_LIBRARY_USAGE_DESCRIPTION" desc="Specifies the reason for accessing the user's photo library while the app is in use [Length: unlimited] [iOS only].">
         This lets you save and upload photos.
       </message>
       <message name="IDS_IOS_PLACEHOLDER_FIND_IN_PAGE" desc="The iOS placeholder for searching in the current page [Length: 30em] [iOS only]">
@@ skipping 542 matching lines @@
       </message>
       <message name="IDS_IOS_VOICE_SEARCH_SETTING_TITLE" desc="The title for Voice Search setting [Length: 29em] [iOS only]">
         Voice Search
       </message>
       <message name="IDS_IOS_VOICE_SEARCH_SETTING_TTS" desc="The label for setting switch enabling text-to-speech response after voice search [Length: 29em] [iOS only]">
         Speak Answers Back
       </message>
     </messages>
   </release>
 </grit>