make tests portable by using 565 compatible colors

TBR=reed@google.com

Review URL: https://codereview.chromium.org/1262703002
diff --git a/gm/bmpfilterqualityrepeat.cpp b/gm/bmpfilterqualityrepeat.cpp
index 5c19f00..dd7b901 100644
--- a/gm/bmpfilterqualityrepeat.cpp
+++ b/gm/bmpfilterqualityrepeat.cpp
@@ -25,11 +25,11 @@
         colorBmp.allocN32Pixels(20, 20, true);
         colorBmp.eraseColor(0xFFFF0000);
         canvas.drawBitmap(colorBmp, 0, 0);
-        colorBmp.eraseColor(0xFF008200);
+        colorBmp.eraseColor(sk_tool_utils::color_to_565(0xFF008200));
         canvas.drawBitmap(colorBmp, 20, 0);
-        colorBmp.eraseColor(0xFFFF9000);
+        colorBmp.eraseColor(sk_tool_utils::color_to_565(0xFFFF9000));
         canvas.drawBitmap(colorBmp, 0, 20);
-        colorBmp.eraseColor(0xFF2000FF);
+        colorBmp.eraseColor(sk_tool_utils::color_to_565(0xFF2000FF));
         canvas.drawBitmap(colorBmp, 20, 20);
     }