Migrate libmojo repository into libchrome, part 1. This CL moves following files. - base/* except base/android/* - devices/* - ui/* except ui/gfx/**/mojom/* - ui/gfx/range/range_mac(_unittest)?.mm are just deleted. Bug: 73606903 Test: Built locally. Change-Id: Id0ddf095bb80ba7f48c7650b00916efccb419f16