make pixelsnap textblob* etc gm portable

TBR=reed@google.com

Review URL: https://codereview.chromium.org/1263553002
diff --git a/gm/imageblur2.cpp b/gm/imageblur2.cpp
index 480f093..58e4096 100644
--- a/gm/imageblur2.cpp
+++ b/gm/imageblur2.cpp
@@ -64,7 +64,8 @@
                 SkRandom rand;
                 SkPaint textPaint;
                 textPaint.setAntiAlias(false);
-                textPaint.setColor(rand.nextBits(24) | 0xFF000000);
+                textPaint.setColor(sk_tool_utils::color_to_565(rand.nextBits(24) | 0xFF000000));
+                sk_tool_utils::set_portable_typeface(&textPaint);
                 textPaint.setTextSize(textSize);
 
                 for (int i = 0; i < testStringCount; i++) {