Add cr-settings-radio-group wrapper

chrome/browser/resources/settings/on_startup_page/on_startup_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-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="chrome://md-settings/on_startup_page/startup_urls_page.html">
+<link rel="import" href="chrome://md-settings/radio_group/radio_group.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">
 
 <dom-module id="cr-settings-on-startup-page">
   <link rel="import" type="css"
       href="chrome://md-settings/settings_page/settings_page.css">
   <link rel="import" type="css" href="on_startup_shared.css">
   <template>
     <cr-settings-animated-pages id="pages" current-route="{{currentRoute}}"
         section="on-startup">
       <neon-animatable id="">
         <div id="locationLabel" i18n-content="onStartup"></div>
         <div>
-          <paper-radio-group
-              selected="{{prefs.session.restore_on_startup.value}}">
-            <paper-radio-button
-                name="[[prefValues_.OPEN_NEW_TAB]]"
+          <cr-settings-radio-group pref="{{prefs.session.restore_on_startup}}">
+            <paper-radio-button name="[[prefValues_.OPEN_NEW_TAB]]"
                 i18n-content="onStartupOpenNewTab">
             </paper-radio-button>
-            <paper-radio-button
-                name="[[prefValues_.CONTINUE]]"
+            <paper-radio-button name="[[prefValues_.CONTINUE]]"
                 i18n-content="onStartupContinue">
             </paper-radio-button>
-            <paper-radio-button
-                name="[[prefValues_.OPEN_SPECIFIC]]"
-                i18n-content="onStartupOpenSpecific">
+            <paper-radio-button name="[[prefValues_.OPEN_SPECIFIC]]">
+              <span i18n-content="onStartupOpenSpecific"></span>
+              <paper-button on-tap="onSetPagesTap_" raised
+                  i18n-content="onStartupSetPages">
+              </paper-button>

[dschuyler, 2015/09/17 18:59:43]

Hi, When I've tried putting a button or input inside of a radio button, the
events stop reaching the inner element.  I'm curious if you've not seen this or
have a solution that I missed in this CL :)

[stevenjb, 2015/09/17 19:29:06]

Huh, you are entirely correct, I clearly didn't test that. I've reverted that
change since it is unrelated to the rest of this CL.

             </paper-radio-button>
-          </paper-radio-group>
-          <paper-button
-              on-tap="onSetPagesTap_" raised i18n-content="onStartupSetPages">
-          </paper-button>
+          </cr-settings-radio-group>
         </div>
       </neon-animatable>
       <neon-animatable id="startup-urls">
         <settings-subheader i18n-values="page-title:onStartupSetPages">
         </settings-subheader>
         <cr-settings-startup-urls-page prefs="{{prefs}}">
         </cr-settings-startup-urls-page>
       </neon-animatable>
     </cr-settings-animated-pages>
   </template>
   <script src="on_startup_page.js"></script>
 </dom-module>