In the generated fiddle, set the portable fonts flag first.

experimental/webtry/build

 #!/bin/sh
 
 # This script builds the webtry server; before compilation we need to create the code template
 # so that it contains all publicly available header files in skia/include.
 #
 # By default, the script expects to be run out of the skia/experimental/webtry directory; 
 # if we move directories around this can be overridden by setting the SKIA_ROOT and WEBTRY_ROOT
 # environment variables to point to the skia source tree and the webtry source tree, 
 # respectively.
 
 [ -z "$SKIA_ROOT" ] && SKIA_ROOT="../.."
 [ -z "$WEBTRY_ROOT" ] && WEBTRY_ROOT=`pwd`
 
 [ -z "$GOROOT" ] && export GOROOT=/home/webtry/go
 [ -z "$GOPATH" ] && export GOPATH=/home/webtry/golib
 
 PATH=$PATH:$GOROOT/bin
 
 cd ${SKIA_ROOT}/include
 echo "Creating compile template..."
 find core effects pathops  -maxdepth 1 -name "*.h" | sed "s/.*\///" | sed "s/\(.*\)/#include \"\1\"/" | sort > ${WEBTRY_ROOT}/templates/template.cpp
 echo '#include "sk_tool_utils.h"' >> ${WEBTRY_ROOT}/templates/template.cpp
+echo '#include "SkCommandLineFlags.h"' >> ${WEBTRY_ROOT}/templates/template.cpp
 echo '' >> ${WEBTRY_ROOT}/templates/template.cpp
 echo "SkBitmap source;" >> ${WEBTRY_ROOT}/templates/template.cpp
 echo "{{.Code}}" >> ${WEBTRY_ROOT}/templates/template.cpp
 cd ${WEBTRY_ROOT}
 echo "Building webtry..."
 go build webtry.go
 echo "Done!"