refactor(router): convert to typescript

Fixes #2001

modules/angular2/src/dom/dom_adapter.ts

@@ -110,10 +110,10 @@ export class DomAdapter {
   cssToRules(css: string): List<any> { throw _abstract(); }
   supportsDOMEvents(): boolean { throw _abstract(); }
   supportsNativeShadowDOM(): boolean { throw _abstract(); }
-  getGlobalEventTarget(target: string) { throw _abstract(); }
-  getHistory() { throw _abstract(); }
-  getLocation() { throw _abstract(); }
-  getBaseHref() { throw _abstract(); }
+  getGlobalEventTarget(target: string): any { throw _abstract(); }
+  getHistory(): any { throw _abstract(); }
+  getLocation(): any { throw _abstract(); }
+  getBaseHref(): string { throw _abstract(); }
   getUserAgent(): string { throw _abstract(); }
   setData(element, name: string, value: string) { throw _abstract(); }
   getData(element, name: string): string { throw _abstract(); }