am 7c6169de: Port my AOSP QuasiAtomic rewrite to art.

* commit '7c6169de901fd0a39c8e0c078874dc25207f5b59':
  Port my AOSP QuasiAtomic rewrite to art.
tree: 3c669cb1c8217838661dc7104d7f31b2d32758ea
  1. build/
  2. jdwpspy/
  3. src/
  4. test/
  5. tools/
  6. .gitignore
  7. Android.mk