make tests portable by using 565 compatible colors

gm/rrect.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 #include "SkCanvas.h"
 #include "SkRRect.h"
@@ skipping 86 matching lines @@
 }
 
 static void draw_rrect_color(SkCanvas* canvas, const SkRRect& rrect) {
     SkPaint paint;
     paint.setAntiAlias(true);
     paint.setStyle(SkPaint::kStroke_Style);
 
     if (rrect.isRect()) {
         paint.setColor(SK_ColorRED);
     } else if (rrect.isOval()) {
-        paint.setColor(0xFF008800);
+        paint.setColor(sk_tool_utils::color_to_565(0xFF008800));
     } else if (rrect.isSimple()) {
         paint.setColor(SK_ColorBLUE);
     } else {
         paint.setColor(SK_ColorBLACK);
     }
     canvas->drawRRect(rrect, paint);
 }
 
 static void drawrr(SkCanvas* canvas, const SkRRect& rrect, InsetProc proc) {
     SkRRect rr;
@@ skipping 43 matching lines @@
             canvas->restore();
             canvas->translate(0, 170);
         }
     }
 
 private:
     typedef GM INHERITED;
 };
 
 DEF_GM( return new RRectGM; )