Fix refcounting bug for Type1 font usage with more than 255 characters.

src/pdf/SkPDFFont.cpp

Index: src/pdf/SkPDFFont.cpp
diff --git a/src/pdf/SkPDFFont.cpp b/src/pdf/SkPDFFont.cpp
index b824506b189715b5ab0f04255716597c95482ae0..1641a8916c32c9757741658b379cfa105499ae73 100644
--- a/src/pdf/SkPDFFont.cpp
+++ b/src/pdf/SkPDFFont.cpp
@@ -875,9 +875,8 @@ SkPDFFont::SkPDFFont(SkAdvancedTypefaceMetrics* info, SkTypeface* typeface,
           fTypeface(ref_or_default(typeface)),
           fFirstGlyphID(1),
           fLastGlyphID(info ? info->fLastGlyphID : 0),
-          fFontInfo(info),
-          fDescriptor(relatedFontDescriptor) {
-    SkSafeRef(info);
+          fFontInfo(SkSafeRef(info)),
+          fDescriptor(SkSafeRef(relatedFontDescriptor)) {
     if (info == NULL) {
         fFontType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font;
     } else if (info->fMultiMaster) {