make glyph_pos imageblur* largeglyphblur portable

gm/imageblur.cpp

Index: gm/imageblur.cpp
diff --git a/gm/imageblur.cpp b/gm/imageblur.cpp
index c7139b4f65b054fc96b05863282d5c751ecc0ecd..d0f1fd1803ebc5cdea9a5aae9b890740029bdad9 100644
--- a/gm/imageblur.cpp
+++ b/gm/imageblur.cpp
@@ -41,11 +41,11 @@ protected:
         SkRandom rand;
         SkPaint textPaint;
         textPaint.setAntiAlias(true);
-        sk_tool_utils::set_portable_typeface(&textPaint);
+        sk_tool_utils::set_portable_typeface_always(&textPaint);
         for (int i = 0; i < 25; ++i) {
             int x = rand.nextULessThan(WIDTH);
             int y = rand.nextULessThan(HEIGHT);
-            textPaint.setColor(rand.nextBits(24) | 0xFF000000);
+            textPaint.setColor(sk_tool_utils::color_to_565(rand.nextBits(24) | 0xFF000000));

[reed1, 2015/07/16 21:14:04]

Does this actually result in zero-diffs, given that the paint has antialiasing
on?

[caryclark, 2015/07/17 12:42:30]

No, but it reduces the number of diffs. I've largely given up on zero diffs;
instead, I try to minimize the diffs so any actual bugs stand out.

             textPaint.setTextSize(rand.nextRangeScalar(0, 300));
             canvas->drawText(str, strlen(str), SkIntToScalar(x),
                              SkIntToScalar(y), textPaint);