Add <a is="action-link">, a web component extension of <a> for in-page actions.

chrome/browser/resources/options/language_options.html

 <div id="languagePage" class="page" hidden>
   <div class="close-button"></div>
   <h1 i18n-content="languagePage"></h1>
   <div class="content-area">
     <div id="notification">
       <span>&nbsp;</span>
       <span class="link"><span class="link-color"></span></span>
     </div>
     <div class="language-options-header">
       <span i18n-content="addLanguageInstructions"></span>
@@ skipping 88 matching lines @@
               i18n-content="noInputMethods" hidden>
           </span>
         </div>
 </if>
       </div>
     </div>
     <div class="language-options-footer">
 <if expr="chromeos">
       <div i18n-content="switchInputMethodsHint"></div>
       <div i18n-content="selectPreviousInputMethodHint"></div>
-      <button id="edit-dictionary-button"
-          class="link-button standalone-link-button"
-          i18n-content="languageDictionaryOverlayTitle"></button>
+      <a is="action-link" id="edit-dictionary-button"
+          class="standalone-action-link"
+          i18n-content="languageDictionaryOverlayTitle"></a>
 </if>
 <if expr="not chromeos and not is_macosx">
       <div id="spell-check-option" class="checkbox">
         <label>
           <input id="enable-spell-check" pref="browser.enable_spellchecking"
               metric="Options_SpellCheck" type="checkbox">
           <span i18n-content="enableSpellCheck"></span>
         </label>
-        <button id="edit-dictionary-button" class="link-button"
-            i18n-content="languageDictionaryOverlayTitle" hidden></button>
+        <a is="action-link" id="edit-dictionary-button"
+            i18n-content="languageDictionaryOverlayTitle" hidden></a>
       </div>
       <div id="auto-spell-correction-option" class="checkbox" hidden>
         <label>
           <input id="enable-auto-spell-correction"
               pref="browser.enable_autospellcorrect"
               metric="Options_AutoSpellCorrection" type="checkbox">
           <span i18n-content="enableAutoSpellCorrection"></span>
         </label>
       </div>
 </if>
     </div>
   </div>
   <div class="action-area">
     <div class="button-strip">
       <button id="language-confirm" class="default-button" i18n-content="done">
       </button>
     </div>
   </div>
 </div>