Move DirExists and FileHasContent to utils library

Bug: 110478603
Test: local & gce
Change-Id: I0c04877698a586c0723fe6c6f896f3e85973af0c
4 files changed
tree: a04d3f27d710d55761ffdf6b4b2a76315250967c
  1. common/
  2. guest/
  3. host/
  4. tests/
  5. tools/
  6. Android.bp
  7. Android.mk
  8. OWNERS