Header dependencies can be generated by ninja

I saw this in:

Line 240 in bf55723

# Emperically determined to be required by client apps.

ninja can describe the headers needed for any target by running:

ninja -t deps

Hey there,

It's been a long time coming but the libchromiumcontent repository is being archived as it is no longer used in the Electron build system (🎉 this is a good thing).

If your issue is still relevant to Electron in it's current build system (please verify first) then you should probably raise a similar issue on electron/electron.

Thanks 😄