MD Settings: Fix Reset profile dialog scenario that causes a crash.

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

 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="/i18n_setup.html">
 <link rel="import" href="/reset_page/reset_profile_dialog.html">
 <link rel="import" href="/settings_shared_css.html">
 
 <if expr="chromeos">
 <link rel="import" href="/reset_page/powerwash_dialog.html">
 </if>
 
 <dom-module id="settings-reset-page">
   <template>
     <style include="settings-shared"></style>
     <div class="settings-box first two-line single-column" id="resetProfile"
         on-tap="onShowResetProfileDialog_" actionable>
       <div>$i18n{resetPageTitle}</div>
       <div class="secondary">$i18n{resetPageDescription}</div>
     </div>
+    <template is="dom-if" if="[[showResetProfileDialog_]]">

[Dan Beam, 2016/09/17 01:00:32]

wanna use <cr-lazy-render> if you never intend to set this if to false?

[dpapad, 2016/09/20 00:52:36]

Done.

+      <settings-reset-profile-dialog></settings-reset-profile-dialog>
+    </template>
 <if expr="chromeos">
     <div class="settings-box two-line single-column" id="powerwash" actionable
         on-tap="onShowPowerwashDialog_" hidden="[[!allowPowerwash_]]">
       <div>$i18n{powerwashTitle}</div>
       <div class="secondary">$i18n{powerwashDescription}</div>
     </div>
 </if>
   </template>
   <script src="/reset_page/reset_page.js"></script>
 </dom-module>