Elim cr_button from md-settings

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

 <link rel="import" href="chrome://resources/polymer/v1_0/polymer/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-flex-layout/classes/iron-flex-layout.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/neon-animation/neon-animatable.html">
+<link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button.html">
-<link rel="import" href="chrome://resources/cr_elements/v1_0/cr_button/cr_button.html">
 <link rel="import" href="chrome://md-settings/certificate_manager_page/certificate_manager_page.html">
 <link rel="import" href="chrome://md-settings/clear_browsing_data_page/clear_browsing_data_page.html">
 <link rel="import" href="chrome://md-settings/checkbox/checkbox.html">
 <link rel="import" href="chrome://md-settings/settings_page/settings_animated_pages.html">
 <link rel="import" href="chrome://md-settings/settings_page/settings_subheader.html">
 <link rel="import" href="chrome://md-settings/site_settings_page/site_settings_page.html">
 
 <dom-module id="cr-settings-privacy-page">
   <link rel="import" type="css"
       href="chrome://md-settings/settings_page/settings_page.css">
@@ skipping 44 matching lines @@
         <cr-settings-checkbox
             pref="{{prefs.cros.device.attestation_for_content_protection_enabled}}"
             i18n-values="label:enableContentProtectionAttestation">
         </cr-settings-checkbox>
         <cr-settings-checkbox
             pref="{{prefs.settings.internet.wake_on_wifi_ssid}}"
             i18n-values="label:wakeOnWifi">
         </cr-settings-checkbox>
 </if>
         <div class="privacy-buttons layout horizontal end-justified">
-          <cr-button
+          <paper-button
               on-tap="onManageCertificatesTap_"
               i18n-content="manageCertificates">
-          </cr-button>
-          <cr-button
+          </paper-button>
+          <paper-button
               on-tap="onSiteSettingsTap_"
               i18n-content="siteSettings">
-          </cr-button>
-          <cr-button
+          </paper-button>
+          <paper-button
               on-tap="onClearBrowsingDataTap_"
               raised i18n-content="clearBrowsingData">
-          </cr-button>
+          </paper-button>
         </div>
       </neon-animatable>
       <neon-animatable id="manage-certificates">
         <settings-subheader i18n-values="page-title:manageCertificates">
         </settings-subheader>
         <cr-settings-certificate-manager-page>
         </cr-settings-certificate-manager-page>
       </neon-animatable>
       <neon-animatable id="site-settings">
         <settings-subheader i18n-values="page-title:siteSettings">
         </settings-subheader>
         <cr-settings-site-settings-page></cr-settings-site-settings-page>
       </neon-animatable>
       <neon-animatable id="clear-browsing-data">
         <settings-subheader i18n-values="page-title:clearBrowsingData">
         </settings-subheader>
         <cr-settings-clear-browsing-data-page prefs="{{prefs}}">
         </cr-settings-clear-browsing-data-page>
       </neon-animatable>
     </cr-settings-animated-pages>
   </template>
   <script src="privacy_page.js"></script>
 </dom-module>