Oobe: use action-link for oobe internal link

Bug: 1133745
Change-Id: Iaf52caf6640151723c74aadbf6641504d7210089
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2557082
Commit-Queue: Yunke Zhou <yunkez@google.com>
Commit-Queue: Denis Kuznetsov [CET] <antrim@chromium.org>
Reviewed-by: Denis Kuznetsov [CET] <antrim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#830583}

chrome/browser/resources/chromeos/login/arc_terms_of_service.html

@@ -89,8 +89,8 @@
           <div id="arcPaiService" class="parameter-section arc-tos-content">
             <p>
               <span>[[i18nDynamic(locale, 'arcTextPaiService')]]</span>
-              <a href="#" id="learnMoreLinkPai"
-                  on-click="onPaiLearnMoreTap_">
+              <a id="learnMoreLinkPai" class="oobe-local-link"
+                  on-click="onPaiLearnMoreTap_" is="action-link">
                 [[i18nDynamic(locale, 'arcLearnMoreText')]]
               </a>
             </p>