Revert "Replacing non-portable CanvasRenderingContext.setFillColor with more portable variants."

tests/html/canvas_using_html_test.dart

Index: tests/html/canvas_using_html_test.dart
diff --git a/tests/html/canvas_using_html_test.dart b/tests/html/canvas_using_html_test.dart
index bec6bf3c416ea50ed6947d1fa03a2dd9c5685a94..11cc3c7ac387fa0e03608bb8842a0a997134d828 100644
--- a/tests/html/canvas_using_html_test.dart
+++ b/tests/html/canvas_using_html_test.dart
@@ -23,6 +23,21 @@ main() {
 
     // TODO(vsm): Verify the result once we have the ability to read pixels.
   });
+  test('SetFillColor', () {
+    // With floats.
+    context.setFillColor(10, 10, 10, 10);
+    context.fillRect(10, 10, 20, 20);
+
+    // With rationals.
+    context.setFillColor(10.0, 10.0, 10.0, 10.0);
+    context.fillRect(20, 20, 30, 30);
+
+    // With ints.
+    context.setFillColor(10, 10, 10, 10);
+    context.fillRect(30, 30, 40, 40);
+
+    // TODO(vsm): Verify the result once we have the ability to read pixels.
+  });
   test('StrokeStyle', () {
     context.strokeStyle = "blue";
     context.strokeRect(30, 30, 10, 20);