colorwheelnative gm, to test that colors look right under all conditions.

gm/colorwheel.cpp

Index: gm/colorwheel.cpp
diff --git a/gm/colorwheel.cpp b/gm/colorwheel.cpp
index 93c59388d927d3295dd3e888e4115740fd658615..efc40131571831b23504428ee0f23e09373bee14 100644
--- a/gm/colorwheel.cpp
+++ b/gm/colorwheel.cpp
@@ -55,3 +55,25 @@ DEF_SIMPLE_GM(colorwheel, canvas, 256, 256) {
     draw_bitmap(canvas, "color_wheel.webp", 0, 128);  // bottom left
     draw_bitmap(canvas, "color_wheel.jpg", 128, 128);  // bottom right
 }
+
+DEF_SIMPLE_GM(colorwheelnative, canvas, 128, 28) {

[scroggo, 2014/12/02 17:45:57]

Might there be a more descriptive name?

+    SkPaint paint;
+    paint.setTypeface(SkTypeface::CreateFromName("Arial", SkTypeface::kBold));

[scroggo, 2014/12/02 17:45:57]

Is there a particular reason you chose this font? Do we have any fonts that
would look the same across platforms?

+    paint.setTextSize(18.0f);
+
+    canvas->clear(SK_ColorLTGRAY);
+    paint.setColor(SK_ColorRED);
+    canvas->drawText("R", 1, 8.0f, 20.0f, paint);
+    paint.setColor(SK_ColorGREEN);
+    canvas->drawText("G", 1, 24.0f, 20.0f, paint);
+    paint.setColor(SK_ColorBLUE);
+    canvas->drawText("B", 1, 40.0f, 20.0f, paint);
+    paint.setColor(SK_ColorCYAN);
+    canvas->drawText("C", 1, 56.0f, 20.0f, paint);
+    paint.setColor(SK_ColorMAGENTA);
+    canvas->drawText("M", 1, 72.0f, 20.0f, paint);
+    paint.setColor(SK_ColorYELLOW);
+    canvas->drawText("Y", 1, 88.0f, 20.0f, paint);
+    paint.setColor(SK_ColorBLACK);
+    canvas->drawText("K", 1, 104.0f, 20.0f, paint);
+}