MD Settings: Move various non-Polymer properties outside of "properties".

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

Index: chrome/browser/resources/settings/appearance_page/appearance_fonts_page.js
diff --git a/chrome/browser/resources/settings/appearance_page/appearance_fonts_page.js b/chrome/browser/resources/settings/appearance_page/appearance_fonts_page.js
index e9ca220be5fc5d4a81903a7782056d3b79f3c76b..ca60421a8af5ab38aa74b3548242434bacfdc9ed 100644
--- a/chrome/browser/resources/settings/appearance_page/appearance_fonts_page.js
+++ b/chrome/browser/resources/settings/appearance_page/appearance_fonts_page.js
@@ -39,14 +39,8 @@
 
     properties: {
       /** @private */
-      advancedExtensionInstalled_: Boolean,
-
-      /** @private */
       advancedExtensionSublabel_: String,
 
-      /** @private */
-      advancedExtensionUrl_: String,
-
       /** @private {!DropdownMenuOptionList} */
       fontOptions_: Object,
 
@@ -85,13 +79,19 @@
       },
     },
 
+    /** @private {?settings.FontsBrowserProxy} */
+    browserProxy_: null,
+
+    /** @private {boolean} */
+    advancedExtensionInstalled_: false,
+
+    /** @private {?string} */
+    advancedExtensionUrl_: null,
+
     observers: [
       'fontSizeChanged_(prefs.webkit.webprefs.default_font_size.value)',
     ],
 
-    /** @private {?settings.FontsBrowserProxy} */
-    browserProxy_: null,
-
     /** @override */
     created: function() {
       this.browserProxy_ = settings.FontsBrowserProxyImpl.getInstance();