Merge changes I175dc3c3,I070b13d4 into gce-dev

* changes:
  Adds an overload to SharedFD::CopyFrom that takes the length
  Log the entire command on subprocess.cpp
tree: 30ff72b4670bb10b73e5f2eab0ba009064d89192
  1. common/
  2. guest/
  3. host/
  4. tests/
  5. tools/
  6. Android.bp
  7. Android.mk
  8. OWNERS