anchor.diff:  
       eval makeWrapper "${browserBinary}" "$out/bin/chromium" \
         --add-flags ${escapeShellArg (escapeShellArg commandLineArgs)} \
  -      ${optionalVaapiFlags} \
  +      ${lib.optionalString enableVaapi "--add-flags --enable-accelerated-video-decode"} \
         ${concatMapStringsSep " " getWrapperFlags chromium.plugins.enabled}
   
       ed -v -s "$out/bin/chromium" << EOF
  
positive.code:       ''
      else browser;
  
    optionalVaapiFlags = if useVaapi # TODO: Remove after 20.09:
      then throw ''
        Chromium's useVaapi was replaced by enableVaapi and you don't need to pass
        "--ignore-gpu-blacklist" anymore (also no rebuilds are required anymore).
      '' else lib.optionalString
        (enableVaapi)
        "--add-flags --enable-accelerated-video-decode";
  in stdenv.mkDerivation {
    name = "chromium${suffix}-${version}";
    inherit version;
  
negative.code: , proprietaryCodecs ? true
  , enablePepperFlash ? false
  , enableWideVine ? false
  , enableVaapi ? false # Disabled by default due to unofficial support
  , useOzone ? false
  , cupsSupport ? true
  