Change some roles to "button" instead of "link" where it'd benefit users of

chrome/app/chromium_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <!-- This file contains definitions of strings that are distribution specific.
 These strings will not be translated and only english versions will
 be available for now. -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="grit/chromium_strings.h" type="rc_header">
       <emit emit_type='prepend'></emit>
@@ skipping 411 matching lines @@
           Let Chromium run in the background
         </message>
       </if>
       <message name="IDS_OPTIONS_SYSTEM_ENABLE_BACKGROUND_MODE" desc="The label of the check-box that enables background mode">
         Continue running background apps when Chromium is closed
       </message>
       <message name="IDS_OPTIONS_SYSTEM_ENABLE_HARDWARE_ACCELERATION_MODE" desc="The label of the check-box that enables hardware acceleration mode">
         Use hardware acceleration when available
       </message>
       <message name="IDS_OPTIONS_SYSTEM_ENABLE_HARDWARE_ACCELERATION_MODE_RESTART" desc="The restart string after changing hardware acceleration mode">
-        (requires Chromium <ph name="BEGIN_BUTTON">&lt;a is="action-link" id="gpu-mode-reset-restart-button" class="standalone-action-link"&gt;</ph>restart<ph name="END_BUTTON">&lt;/a&gt;</ph>)
+        (requires Chromium <ph name="BEGIN_BUTTON">&lt;a is="action-link" role="button" id="gpu-mode-reset-restart-button" class="standalone-action-link"&gt;</ph>restart<ph name="END_BUTTON">&lt;/a&gt;</ph>)
       </message>
       <message name="IDS_CANT_WRITE_USER_DIRECTORY_SUMMARY" desc="Summary of problem displayed in dialog when we can't create a directory for this user.">
 Chromium cannot read and write to its data directory:
 
 <ph name="USER_DATA_DIRECTORY">$1<ex>C:\Documents and Settings\devint\Local Settings\Application Data\Google\Chrome</ex></ph>
       </message>
       <if expr="chromeos">
         <message name="IDS_EULA_CHECKBOX_ENABLE_LOGGING" desc="The label of the checkbox to enable/disable crash and user metrics logging">
           Optional: Help make Chromium better by automatically sending usage statistics and crash reports to Google.
         </message>
@@ skipping 889 matching lines @@
           Chromium updates automatically so you always have the freshest version. When this download completes, Chromium will restart and you'll be on your way.
         </message>
         <message name="IDS_EULA_SCREEN_ACCESSIBLE_TITLE" desc="Title to be spoken on opening the OOBE EULA screen">
           Chromium OS terms
         </message>
       </if>
 
     </messages>
   </release>
 </grit>