Fix a skia valgrind error.

skia/ext/SkFontHost_fontconfig_direct.cpp

Index: skia/ext/SkFontHost_fontconfig_direct.cpp
diff --git a/skia/ext/SkFontHost_fontconfig_direct.cpp b/skia/ext/SkFontHost_fontconfig_direct.cpp
index f5d38c64808ce9c1bb5db7c6d3680d880fd1c9f4..cb21b0e5346cd1fc7ffd49c82e70e211e2b4251b 100644
--- a/skia/ext/SkFontHost_fontconfig_direct.cpp
+++ b/skia/ext/SkFontHost_fontconfig_direct.cpp
@@ -154,7 +154,7 @@ bool FontConfigDirect::Match(std::string* result_family,
         }
     }
 
-    if (*result_fileid)
+    if (result_fileid)
         *result_fileid = out_fileid;
 
     FcChar8* c_family;