am f1498437: Clean up Mutex a little and add the missing pieces for Mac OS.

* commit 'f1498437b0d6beb9f4f91980b98cbeb0b5c773ce':
  Clean up Mutex a little and add the missing pieces for Mac OS.
tree: 18b9b9b7853a8d73430d85db1c654b10995d63af
  1. build/
  2. jdwpspy/
  3. src/
  4. test/
  5. tools/
  6. .gitignore
  7. Android.mk