1. Go to the app directory

   cd /Applications/Google\ Chrome.app/Contents/MacOS/

2. Rename the app to app.orig

   mv Google\ Chrome Google\ Chrome.orig

3. Create a shell script with the original name that uses the args you want

   cat > Google\ Chrome
   #!/bin/bash
   "$0.orig" --disable-print-preview

4. Make it executable

   chmod + x Google\ Chrome