This PR corrects several inclusions of `base/files/file_util.h`, specially in headers where it is absolutely not supposed to occur. Bug: https://github.com/brave/brave-browser/issues/42212
This PR corrects several inclusions of `base/files/file_util.h`, specially in headers where it is absolutely not supposed to occur. Bug: https://github.com/brave/brave-browser/issues/42212