Convert files from JavaScript to TypeScript

Change-Id: Id5e5dae3f06c65fb6e9cd340e528799d117b2f3a

polygerrit-ui/app/elements/font-roboto-local-loader.ts

@@ -16,5 +16,4 @@
  */
 
 // Place all code related to font-roboto-local here
-import '@polymer/font-roboto-local/roboto.js';
-
+import '@polymer/font-roboto-local/roboto';

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

@@ -14,9 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import {initAppContext} from '../services/app-context-init.js';
-import {initVisibilityReporter, initPerformanceReporter, initErrorReporter} from '../services/gr-reporting/gr-reporting_impl.js';
-import {appContext} from '../services/app-context.js';
+import {initAppContext} from '../services/app-context-init';
+import {
+  initVisibilityReporter,
+  initPerformanceReporter,
+  initErrorReporter,
+} from '../services/gr-reporting/gr-reporting_impl';
+import {appContext} from '../services/app-context';
 
 if (!window.Polymer) {
   window.Polymer = {

polygerrit-ui/app/types/custom-externs.ts

@@ -60,3 +60,4 @@ var GrDisplayNameUtils;
 var GrReviewerSuggestionsProvider;
 var page;
 var util;
+var Polymer: any;

polygerrit-ui/app/utils/safe-types-util.ts

@@ -20,12 +20,11 @@ const SAFE_URL_PATTERN = /^(https?:\/\/|mailto:|[^:/?#]*(?:[/?#]|$))/i;
 /**
  * Wraps a string to be used as a URL. An error is thrown if the string cannot
  * be considered safe.
- *
- * @constructor
- * @param {string} url the unwrapped, potentially unsafe URL.
  */
 class SafeUrl {
-  constructor(url) {
+  private readonly _url: string;
+
+  constructor(url: string) {
     if (!SAFE_URL_PATTERN.test(url)) {
       throw new Error(`URL not marked as safe: ${url}`);
     }
@@ -41,10 +40,8 @@ export const _testOnly_SafeUrl = SafeUrl;
 
 /**
  * Get the string representation of the safe URL.
- *
- * @returns {string}
  */
-export function safeTypesBridge(value, type) {
+export function safeTypesBridge(value: unknown, type: string): unknown {
   // If the value is being bound to a URL, ensure the value is wrapped in the
   // SafeUrl type first. If the URL is not safe, allow the SafeUrl constructor
   // to surface the error.