SkPDF: Fix Hal's bad spelling

No-Try: true
Change-Id: I7812fd7be60b50e512ec785343bc79533155c037
Reviewed-on: https://skia-review.googlesource.com/c/182457
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
diff --git a/src/pdf/SkPDFFont.h b/src/pdf/SkPDFFont.h
index 4d3ee98..d970c44 100644
--- a/src/pdf/SkPDFFont.h
+++ b/src/pdf/SkPDFFont.h
@@ -34,7 +34,7 @@
     SkTypeface* typeface() const { return fTypeface.get(); }
 
     /** Returns the font type represented in this font.  For Type0 fonts,
-     *  returns the type of the decendant font.
+     *  returns the type of the descendant font.
      */
     SkAdvancedTypefaceMetrics::FontType getType() const { return fFontType; }