message: Change to new locaiton strategy API
diff: @@ -23,6 +23,6 @@ export class NavigationInfoComponent {
  update() {
  // If history is cleared: frameStack = 0, locationStack = 1
  this.frameStack = this.frame.backStack.length;
  - this.locationStack = this.strategy._getStates()["primary"].length;
  + this.locationStack = this.strategy.findOutletByOutletPath("primary").states.length;
  }
  }
  