MD Settings: minor cleanup of content settings code.

chrome/browser/resources/settings/privacy_page/privacy_page.html

Index: chrome/browser/resources/settings/privacy_page/privacy_page.html
diff --git a/chrome/browser/resources/settings/privacy_page/privacy_page.html b/chrome/browser/resources/settings/privacy_page/privacy_page.html
index 4cf04ab572baa4366645b404ca15219b2ce01015..a4f8354955b8d2bd13ecea7d9957759f87c5133f 100644
--- a/chrome/browser/resources/settings/privacy_page/privacy_page.html
+++ b/chrome/browser/resources/settings/privacy_page/privacy_page.html
@@ -272,10 +272,9 @@
           <category-default-setting category="{{ContentSettingsTypes.COOKIES}}"
               toggle-off-label="$i18n{siteSettingsBlocked}"
               toggle-on-label="$i18n{siteSettingsCookiesAllowedRecommended}"
-              sub-option-label="$i18n{deleteDataPostSession}"
-              sub-option-secondary=""><!-- To work with :empty. -->
+              sub-option-label="$i18n{deleteDataPostSession}">
           </category-default-setting>
-          <div class="settings-box">
+          <div class="settings-box two-line">
             <settings-toggle-button class="start"
                 pref="{{prefs.profile.block_third_party_cookies}}"
                 label="$i18n{thirdPartyCookie}"
@@ -436,7 +435,7 @@
       </template>
       <template is="dom-if" route-path="/cookies/detail" no-search>
         <settings-subpage page-title="[[pageTitle]]">
-          <paper-button class="subpage-title-extra"
+          <paper-button class="subpage-title-extra secondary-button"
               on-tap="onRemoveAllCookiesFromSite_">
             $i18n{siteSettingsCookieRemoveAll}
           </paper-button>