MD WebUI: Extract settings-dialog into shared cr-dialog element

chrome/browser/resources/settings/about_page/channel_switcher_dialog.html

Index: chrome/browser/resources/settings/about_page/channel_switcher_dialog.html
diff --git a/chrome/browser/resources/settings/about_page/channel_switcher_dialog.html b/chrome/browser/resources/settings/about_page/channel_switcher_dialog.html
index bb7d6c7228f116e59914f3bc66a028add0265339..8d623b3d93cfd2a51961926e6e72254ba2735cc9 100644
--- a/chrome/browser/resources/settings/about_page/channel_switcher_dialog.html
+++ b/chrome/browser/resources/settings/about_page/channel_switcher_dialog.html
@@ -1,16 +1,16 @@
+<link rel="import" href="chrome://resources/cr_elements/cr_dialog/cr_dialog.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/html/i18n_behavior.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-radio-button/paper-radio-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-radio-group/paper-radio-group.html">
 <link rel="import" href="/about_page/about_page_browser_proxy.html">
-<link rel="import" href="/settings_dialog.html">
 <link rel="import" href="/settings_shared_css.html">
 
 <dom-module id="settings-channel-switcher-dialog">
   <template>
     <style include="settings-shared"></style>
-    <settings-dialog id="dialog">
+    <cr-dialog id="dialog">
       <div class="title">$i18n{aboutChangeChannel}</div>
       <div class="body">
         <paper-radio-group
@@ -44,7 +44,7 @@
           $i18n{aboutChangeChannelAndPowerwash}
         </paper-button>
       </div>
-    </settings-dialog>
+    </cr-dialog>
   </template>
   <script src="channel_switcher_dialog.js"></script>
 </dom-module>