[MD settings] update i18n replacements in a11y, privacy, reset, and search

chrome/browser/resources/settings/reset_page/powerwash_dialog.html

 <link rel="import" href="chrome://resources/html/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/paper-button/paper-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-checkbox/paper-checkbox.html">
 <link rel="import" href="chrome://md-settings/reset_page/reset_browser_proxy.html">
 <link rel="import" href="chrome://md-settings/settings_dialog.html">
 <link rel="import" href="chrome://md-settings/settings_shared_css.html">
 
 <dom-module id="settings-powerwash-dialog">
   <link rel="import" type="css" href="reset_page_dialog.css">
   <template>
     <style include="settings-shared"></style>
     <settings-dialog id="dialog">
-      <div class="title" i18n-content="powerwashDialogTitle"></div>
+      <div class="title">$i18n{powerwashDialogTitle}</div>
       <div class="body">
-        <span i18n-content="powerwashDialogExplanation"></span>
-        <a i18n-values="href:powerwashLearnMoreUrl"
-            i18n-content="learnMore" target="_blank"></a>
+        $i18n{powerwashDialogExplanation}&nbsp;

[Dan Beam, 2016/05/11 22:09:44]

why is this   here?

[dschuyler, 2016/05/11 22:25:00]

Without the   the link is right-on-top of 
the end of the sentence. We could also wrap it
in a <span> or use some styling.

[Dan Beam, 2016/05/11 22:27:40]

with the  , it may not wrap correctly, right?

[dschuyler, 2016/05/11 22:55:50]

I'll change it to a <span>

(It's very hard to see the difference. The <span> will
wrap just a few pixels earlier).

+        <a href="$i18nRaw{powerwashLearnMoreUrl}"
+            target="_blank">$i18n{learnMore}</a>
       </div>
       <div class="button-container">
         <paper-button class="cancel-button" on-tap="onCancelTap_"
-            id="cancel" i18n-content="cancel"></paper-button>
+            id="cancel">$i18n{cancel}</paper-button>
         <paper-button class="action-button" id="powerwash"
-            on-tap="onRestartTap_" i18n-content="powerwashDialogButton">
-        </paper-button>
+            on-tap="onRestartTap_">$i18n{powerwashDialogButton}</paper-button>
       </div>
     </settings-dialog>
   </template>
   <script src="powerwash_dialog.js"></script>
 </dom-module>