Named parameters for the mock_events.dart TestPointer class

packages/unit/test/engine/mock_events.dart

@@ -11,7 +11,7 @@ class TestPointer {
   bool isDown = false;
   ui.Point location;
 
-  PointerInputEvent down([ui.Point newLocation = ui.Point.origin, double timeStamp = 0.0 ]) {
+  PointerInputEvent down(ui.Point newLocation, { double timeStamp: 0.0 }) {
     assert(!isDown);
     isDown = true;
     location = newLocation;
@@ -24,7 +24,7 @@ class TestPointer {
     );
   }
 
-  PointerInputEvent move([ui.Point newLocation = ui.Point.origin, double timeStamp = 0.0]) {
+  PointerInputEvent move(ui.Point newLocation, { double timeStamp: 0.0 }) {
     assert(isDown);
     ui.Offset delta = newLocation - location;
     location = newLocation;
@@ -39,7 +39,7 @@ class TestPointer {
     );
   }
 
-  PointerInputEvent up([ double timeStamp = 0.0 ]) {
+  PointerInputEvent up({ double timeStamp: 0.0 }) {
     assert(isDown);
     isDown = false;
     return new PointerInputEvent(
@@ -51,7 +51,7 @@ class TestPointer {
     );
   }
 
-  PointerInputEvent cancel([ double timeStamp = 0.0 ]) {
+  PointerInputEvent cancel({ double timeStamp: 0.0 }) {
     assert(isDown);
     isDown = false;
     return new PointerInputEvent(

packages/unit/test/gestures/pointer_router_test.dart

@@ -15,9 +15,9 @@ void main() {
 
     PointerRouter router = new PointerRouter();
     router.addRoute(3, callback);
-    router.route(pointer2.down());
+    router.route(pointer2.down(Point.origin));
     expect(callbackRan, isFalse);
-    router.route(pointer3.down());
+    router.route(pointer3.down(Point.origin));
     expect(callbackRan, isTrue);
     callbackRan = false;
     router.removeRoute(3, callback);

packages/unit/test/widget/widget_tester.dart

@@ -156,13 +156,13 @@ class WidgetTester {
     final kMoveCount = 50; // Needs to be >= kHistorySize, see _LeastSquaresVelocityTrackerStrategy
     final double timeStampDelta = 1000.0 * offset.distance / (kMoveCount * velocity);
     double timeStamp = 0.0;
-    _dispatchEvent(p.down(startLocation, timeStamp), result);
+    _dispatchEvent(p.down(startLocation, timeStamp: timeStamp), result);
     for(int i = 0; i < kMoveCount; i++) {
       final Point location = startLocation + Offset.lerp(Offset.zero, offset, i / kMoveCount);
-      _dispatchEvent(p.move(location, timeStamp), result);
+      _dispatchEvent(p.move(location, timeStamp: timeStamp), result);
       timeStamp += timeStampDelta;
     }
-    _dispatchEvent(p.up(timeStamp), result);
+    _dispatchEvent(p.up(timeStamp: timeStamp), result);
   }
 
   void scroll(Element element, Offset offset, { int pointer: 1 }) {