Fix swarm for non-integer Event timeStamps

samples-dev/swarm/swarm_ui_lib/touch/TouchUtil.dart

Index: samples-dev/swarm/swarm_ui_lib/touch/TouchUtil.dart
diff --git a/samples-dev/swarm/swarm_ui_lib/touch/TouchUtil.dart b/samples-dev/swarm/swarm_ui_lib/touch/TouchUtil.dart
index 106d29d7ad6eb2878dd3a8c05d0376058b6489c9..60ed6e4545f2a6f31460f7f88367bd0311b8ca0c 100644
--- a/samples-dev/swarm/swarm_ui_lib/touch/TouchUtil.dart
+++ b/samples-dev/swarm/swarm_ui_lib/touch/TouchUtil.dart
@@ -210,6 +210,10 @@ class MockTouch implements Touch {
     throw new UnimplementedError();
   }
 
+  String get region {
+    throw new UnimplementedError();
+  }
+
   num get rotationAngle {
     throw new UnimplementedError();
   }
@@ -268,7 +272,8 @@ class MockTouchEvent implements TouchEvent {
 
   EventTarget get target => wrapped.target;
 
-  int get timeStamp => wrapped.timeStamp;
+  /*At different times, int, double, and String*/
+  get timeStamp => wrapped.timeStamp;
 
   String get type => wrapped.type;
 
@@ -315,6 +320,14 @@ class MockTouchEvent implements TouchEvent {
     throw new UnimplementedError();
   }
 
+  List<EventTarget> deepPath() {
+    throw new UnimplementedError();
+  }
+
+  bool get isTrusted {
+    throw new UnimplementedError();
+  }
+
   Point get layer {
     throw new UnimplementedError();
   }
@@ -331,10 +344,18 @@ class MockTouchEvent implements TouchEvent {
     throw new UnimplementedError();
   }
 
+  bool get scoped {
+    throw new UnimplementedError();
+  }
+
   Point get screen {
     throw new UnimplementedError();
   }
 
+  /*InputDeviceCapabilities*/ get sourceCapabilities {
+    throw new UnimplementedError();
+  }
+
   /*InputDevice*/ get sourceDevice {
     throw new UnimplementedError();
   }