[MD settings] specify @override on created, ready, and attached

chrome/browser/resources/settings/appearance_page/appearance_page.js

Index: chrome/browser/resources/settings/appearance_page/appearance_page.js
diff --git a/chrome/browser/resources/settings/appearance_page/appearance_page.js b/chrome/browser/resources/settings/appearance_page/appearance_page.js
index 37a6a96e37471eeacc024b68ee7b96fa06e25525..289e20bdbd4ebc0240bbd7e127c20579ecd8e3af 100644
--- a/chrome/browser/resources/settings/appearance_page/appearance_page.js
+++ b/chrome/browser/resources/settings/appearance_page/appearance_page.js
@@ -122,16 +122,18 @@ Polymer({
     'defaultFontSizeChanged_(prefs.webkit.webprefs.default_font_size.value)',
     'themeChanged_(prefs.extensions.theme.id.value, useSystemTheme_)',
 
-    // <if expr="is_linux and not chromeos">
+// <if expr="is_linux and not chromeos">
     // NOTE: this pref only exists on Linux.
     'useSystemThemePrefChanged_(prefs.extensions.theme.use_system.value)',
-    // </if>
+// </if>
   ],
 
+  /** @override */
   created: function() {
     this.browserProxy_ = settings.AppearanceBrowserProxyImpl.getInstance();
   },
 
+  /** @override */
   ready: function() {
     this.$.defaultFontSize.menuOptions = this.fontSizeOptions_;
     // TODO(dschuyler): Look into adding a listener for the
@@ -196,7 +198,7 @@ Polymer({
     return this.themeUrl_ || loadTimeData.getString('themesGalleryUrl');
   },
 
-  // <if expr="chromeos">
+// <if expr="chromeos">
   /**
    * ChromeOS only.
    * @private
@@ -204,14 +206,14 @@ Polymer({
   openWallpaperManager_: function() {
     this.browserProxy_.openWallpaperManager();
   },
-  // </if>
+// </if>
 
   /** @private */
   onUseDefaultTap_: function() {
     this.browserProxy_.useDefaultTheme();
   },
 
-  // <if expr="is_linux and not chromeos">
+// <if expr="is_linux and not chromeos">
   /**
    * @param {boolean} useSystemTheme
    * @private
@@ -256,7 +258,7 @@ Polymer({
   onUseSystemTap_: function() {
     this.browserProxy_.useSystemTheme();
   },
-  // </if>
+// </if>
 
   /**
    * @param {string} themeId
@@ -276,12 +278,12 @@ Polymer({
     }
 
     var i18nId;
-    // <if expr="is_linux and not chromeos">
+// <if expr="is_linux and not chromeos">
     i18nId = useSystemTheme ? 'systemTheme' : 'classicTheme';
-    // </if>
-    // <if expr="not is_linux or chromeos">
+// </if>
+// <if expr="not is_linux or chromeos">
     i18nId = 'chooseFromWebStore';
-    // </if>
+// </if>
     this.themeSublabel_ = this.i18n(i18nId);
     this.themeUrl_ = '';
   },