Fixes to match internal google rules

Change-Id: I1eb3173bf91964f743f7fc460350019d0e4ce8db

polygerrit-ui/app/elements/admin/gr-repo-plugin-config/gr-repo-plugin-config.ts

@@ -127,7 +127,7 @@ class GrRepoPluginConfig extends GestureEventListeners(
   }
 
   _computeChecked(value = 'false') {
-    return JSON.parse(value);
+    return JSON.parse(value) as boolean;
   }
 
   _handleStringChange(e: Event) {

polygerrit-ui/app/elements/gr-app-init.ts

@@ -22,8 +22,13 @@ import {
 } from '../services/gr-reporting/gr-reporting_impl';
 import {appContext} from '../services/app-context';
 
+interface UninitializedPolymer {
+  lazyRegister: boolean;
+}
+
 if (!window.Polymer) {
-  window.Polymer = {
+  // Without as... it violates internal google rules.
+  (window.Polymer as UninitializedPolymer) = {
     lazyRegister: true,
   };
 }

polygerrit-ui/app/elements/plugins/gr-settings-api/gr-settings-api.ts

@@ -64,7 +64,7 @@ export class GrSettingsApi {
     this.plugin.hook('settings-menu-item').onAttached(el => {
       const menuItem = document.createElement('gr-settings-menu-item');
       menuItem.title = this._title;
-      menuItem.href = `#${token}`;
+      menuItem.setAttribute('href', `#${token}`);
       el.appendChild(menuItem);
     });
     const moduleName = this._moduleName;