As of Electron 4.0.0, libchromiumcontent is no longer built separately from Electron.
See Updated Electron build instructions.
If you're trying to build a pre-4.0.0 version of Electron, look at one of the old branches in this repo:
Shared library build of Chromium’s Content module
As of Electron 4.0.0, libchromiumcontent is no longer built separately from Electron.
See Updated Electron build instructions.
If you're trying to build a pre-4.0.0 version of Electron, look at one of the old branches in this repo: