MD Settings: add extension-controlled indicator to homepage

chrome/browser/resources/settings/appearance_page/appearance_page.html

 <link rel="import" href="chrome://resources/html/i18n_behavior.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/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-light.html">
 <link rel="import" href="/appearance_page/appearance_browser_proxy.html">
 <link rel="import" href="/controls/controlled_radio_button.html">
+<link rel="import" href="/controls/extension_controlled_indicator.html">
 <link rel="import" href="/controls/settings_dropdown_menu.html">
 <link rel="import" href="/controls/settings_input.html">
 <link rel="import" href="/controls/settings_radio_group.html">
 <link rel="import" href="/md_select_css.html">
 <link rel="import" href="/route.html">
 <link rel="import" href="/settings_page/settings_animated_pages.html">
 <link rel="import" href="/settings_page/settings_subpage.html">
 <link rel="import" href="/settings_shared_css.html">
 <link rel="import" href="appearance_fonts_page.html">
 
@@ skipping 63 matching lines @@
                   class="secondary-button">
                 $i18n{useSystemTheme}
               </paper-button>
             </template>
           </div>
 </if>
         </div>
         <div class="settings-box"
             hidden="[[!pageVisibility.homeButton]]">
           <settings-checkbox class="start" label="$i18n{showHomeButton}"
-              sub-label="[[getShowHomeSubLabel_(prefs.homepage_is_newtabpage.value, prefs.homepage.value)]]"
+              sub-label="[[getShowHomeSubLabel_(
+                  prefs.homepage_is_newtabpage.value, prefs.homepage.value)]]"
               pref="{{prefs.browser.show_home_button}}">
           </settings-checkbox>
         </div>
         <template is="dom-if" if="[[prefs.browser.show_home_button.value]]">
           <div class="list-frame"
               hidden="[[!pageVisibility.homeButton]]">
             <settings-radio-group pref="{{prefs.homepage_is_newtabpage}}">
               <controlled-radio-button class="list-item" name="true"
                   pref="[[prefs.homepage_is_newtabpage]]">
                 $i18n{homePageNtp}
               </controlled-radio-button>
               <controlled-radio-button class="list-item" name="false"
                   pref="[[prefs.homepage_is_newtabpage]]">
                 $i18n{other}
                 <!-- TODO(dbeam): this can show double indicators when both
                      homepage and whether to use the NTP as the homepage are
                      managed. -->
                 <settings-input no-label-float pref="{{prefs.homepage}}"
                     label="$i18n{exampleDotCom}"
                     can-tab="[[!prefs.homepage_is_newtabpage.value]]"
                     stop-keyboard-event-propagation>
                 </settings-input>
               </controlled-radio-button>
+              <template is="dom-if" if="[[prefs.homepage.extensionId]]">
+                <extension-controlled-indicator
+                    extension-id="[[prefs.homepage.extensionId]]"
+                    extension-can-be-disabled="[[
+                        prefs.homepage.extensionCanBeDisabled]]"
+                    extension-name="[[prefs.homepage.controlledByName]]"
+                    on-disable-extension="onDisableExtension_">
+                </extension-controlled-indicator>
+              </template>
             </settings-radio-group>
           </div>
         </template>
         <div class="settings-box"
             hidden="[[!pageVisibility.bookmarksBar]]">
           <settings-checkbox class="start" label="$i18n{showBookmarksBar}"
               pref="{{prefs.bookmark_bar.show_on_all_tabs}}">
           </settings-checkbox>
         </div>
         <div class$="settings-box [[getFirst_(pageVisibility.bookmarksBar)]]">
@@ skipping 40 matching lines @@
             associated-control="[[$$('#customize-fonts-subpage-trigger')]]"
             page-title="$i18n{customizeFonts}">
           <settings-appearance-fonts-page prefs="{{prefs}}">
           </settings-appearance-fonts-page>
         </settings-subpage>
       </template>
     </settings-animated-pages>
   </template>
   <script src="appearance_page.js"></script>
 </dom-module>