make tests portable by using 565 compatible colors

gm/lighting.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 "SkLightingImageFilter.h"
 #include "SkOffsetImageFilter.h"
@@ skipping 40 matching lines @@
           SkIntToScalar(fBitmap.width()), SkIntToScalar(fBitmap.height())));
         canvas->drawBitmap(fBitmap, 0, 0, &paint);
         canvas->restore();
     }
 
     void onDraw(SkCanvas* canvas) override {
         if (!fInitialized) {
             make_bitmap();
             fInitialized = true;
         }
-        canvas->clear(0xFF101010);
+        canvas->clear(sk_tool_utils::color_to_565(0xFF101010));
         SkPaint checkPaint;
-        checkPaint.setColor(0xFF202020);
+        checkPaint.setColor(sk_tool_utils::color_to_565(0xFF202020));
         for (int y = 0; y < HEIGHT; y += 16) {
           for (int x = 0; x < WIDTH; x += 16) {
             canvas->save();
             canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
             canvas->drawRect(SkRect::MakeXYWH(8, 0, 8, 8), checkPaint);
             canvas->drawRect(SkRect::MakeXYWH(0, 8, 8, 8), checkPaint);
             canvas->restore();
           }
         }
         SkPoint3 pointLocation = SkPoint3::Make(0, 0, SkIntToScalar(10));
@@ skipping 93 matching lines @@
     SkBitmap fBitmap;
     bool fInitialized;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static GM* MyFactory(void*) { return new ImageLightingGM; }
 static GMRegistry reg(MyFactory);
 
 }