Begin switch to SkFontStyle for legacy calls.

src/core/SkFontStyle.cpp

Index: src/core/SkFontStyle.cpp
diff --git a/src/core/SkFontStyle.cpp b/src/core/SkFontStyle.cpp
index badf9d7a9d88ba959e5af42ce705da3ee07a009a..c28e7213377c8ea451a00db2ab41fb0d175de609 100644
--- a/src/core/SkFontStyle.cpp
+++ b/src/core/SkFontStyle.cpp
@@ -23,11 +23,10 @@ SkFontStyle::SkFontStyle(int weight, int width, Slant slant) {
     fUnion.fR.fSlant = SkTPin<int>(slant, kUpright_Slant, kItalic_Slant);
 }
 
-SkFontStyle::SkFontStyle(unsigned oldStyle) {
-    fUnion.fU32 = 0;
-    fUnion.fR.fWeight = (oldStyle & SkTypeface::kBold) ? SkFontStyle::kBold_Weight
-                                                       : SkFontStyle::kNormal_Weight;
-    fUnion.fR.fWidth = SkFontStyle::kNormal_Width;
-    fUnion.fR.fSlant = (oldStyle & SkTypeface::kItalic) ? SkFontStyle::kItalic_Slant
-                                                        : SkFontStyle::kUpright_Slant;
+/*static*/SkFontStyle SkFontStyle::FromOldStyle(unsigned oldStyle) {
+    return SkFontStyle((oldStyle & SkTypeface::kBold) ? SkFontStyle::kBold_Weight
+                                                      : SkFontStyle::kNormal_Weight,
+                       SkFontStyle::kNormal_Width,
+                       (oldStyle & SkTypeface::kItalic) ? SkFontStyle::kItalic_Slant
+                                                        : SkFontStyle::kUpright_Slant);
 }