MD Settings: Change autofill addr/cc add buttons to paper-button

chrome/app/settings_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Settings-specific strings (included from generated_resources.grd). -->
 <grit-part>
   <!-- About Page -->
   <message name="IDS_SETTINGS_ABOUT_PAGE_BROWSER_VERSION" desc="The text label describing the version of the browser, example: Version 57.0.2937.0 (Developer Build) unknown (64-bit)">
     Version <ph name="PRODUCT_VERSION">$1<ex>15.0.865.0</ex></ph> (<ph name="PRODUCT_CHANNEL">$2<ex>Developer Build</ex></ph>) <ph name="PRODUCT_MODIFIER">$3</ph> <ph name="PRODUCT_VERSION_BITS">$4</ph>
   </message>
   <if expr="chromeos">
     <message name="IDS_SETTINGS_ABOUT_PAGE_DETAILED_BUILD_INFO" desc="Label describing the section that shows detailed information about the current Chrome build.">
       Detailed build information
@@ skipping 318 matching lines @@
   </message>
   <message name="IDS_SETTINGS_AUTOFILL_ADDRESSES_COUNTRY" desc="This is the label for the dropdown that lets a user select the country their address is in. Will be shown when editing or adding an address to use in autofill.">
     Country / Region
   </message>
   <message name="IDS_SETTINGS_AUTOFILL_ADDRESSES_PHONE" desc="This is the label for the field that lets a user modify the phone number that will be used when auto-filling forms on the web.">
     Phone
   </message>
   <message name="IDS_SETTINGS_AUTOFILL_ADDRESSES_EMAIL" desc="This is the label for the field that lets a user modify the email address that will be used when auto-filling forms on the web.">
     Email
   </message>
-  <message name="IDS_SETTINGS_AUTOFILL_ADD_ADDRESS_BUTTON" desc="Label for a button that allows a user to enter a new address that can be used to fill in forms.">
-    Add address
-  </message>
   <message name="IDS_SETTINGS_AUTOFILL_CREDIT_CARD_HEADING" desc="Title for the list of saved passwords that can be used to fill in forms.">
     Credit cards
   </message>
-  <message name="IDS_SETTINGS_AUTOFILL_ADD_CREDIT_CARD_BUTTON" desc="Label for a button that allows a user to enter new credit card information that can be used to fill in forms.">
-    Add credit card
-  </message>
   <message name="IDS_SETTINGS_AUTOFILL_CREDIT_CARD_TYPE_COLUMN_LABEL" desc="Label for the column containing the type of credit card that is saved. The type is in the format: `Visa ****1234`.">
     Type
   </message>
   <message name="IDS_SETTINGS_AUTOFILL_DETAIL" desc="Description of what toggling the 'Autofill' setting does. Immediately underneath IDS_SETTINGS_AUTOFILL">
     Enable Autofill to fill out forms in a single click
   </message>
   <message name="IDS_SETTINGS_ADDRESS_EDIT" desc="Label for a context menu item that shows a dialog with edit options for the selected address." meaning="Edit selected address.">
     Edit
   </message>
   <message name="IDS_SETTINGS_ADDRESS_REMOVE" desc="Label for a context menu item that removes the selected address." meaning="Remove selected address.">
@@ skipping 2442 matching lines @@
       System
     </message>
     <message name="IDS_SETTINGS_SYSTEM_HARDWARE_ACCELERATION_LABEL" desc="Label for the checkbox that forces Chrome to render via hardware acceleration (GPU) when available.">
       Use hardware acceleration when available
     </message>
     <message name="IDS_SETTINGS_SYSTEM_PROXY_SETTINGS_BUTTON" desc="Text for the button that changes a user's network proxy settings.">
       Change proxy settings
     </message>
   </if>
 </grit-part>