make fontscalar gammatext lcdtext typeface verttext2 gm portable

gm/verttext2.cpp

Index: gm/verttext2.cpp
diff --git a/gm/verttext2.cpp b/gm/verttext2.cpp
index 9918049f10c8403daf2f44d5f4196287bcd79364..3a3955ee7c823aea93d2b28ae529e351ee229820 100644
--- a/gm/verttext2.cpp
+++ b/gm/verttext2.cpp
@@ -32,12 +32,16 @@ protected:
     void onOnceBeforeDraw() override {
         const int pointSize = 24;
         textHeight = SkIntToScalar(pointSize);
-        fProp = sk_tool_utils::create_portable_typeface("Helvetica", SkTypeface::kNormal);
-        fMono = sk_tool_utils::create_portable_typeface("Courier New", SkTypeface::kNormal);
+        fProp = SkTypeface::CreateFromName(sk_tool_utils::platform_font_name("sans-serif"),
+                SkTypeface::kNormal);
+        fMono = SkTypeface::CreateFromName(sk_tool_utils::platform_font_name("monospace"),
+                SkTypeface::kNormal);
     }
 
     SkString onShortName() override {
-        return SkString("verttext2");
+        SkString name("verttext2");
+        name.append(sk_tool_utils::major_platform_os_name());
+        return name;
     }
 
     SkISize onISize() override { return SkISize::Make(640, 480); }