POSIX: basic IPC logging

For the moment, we enable IPC logging with an environment variable
(CHROME_IPC_LOGGING) and log everything to stderr.

Review URL: http://codereview.chromium.org/20156


git-svn-id: svn://svn.chromium.org/chrome/trunk@9643 0039d316-1c4b-4281-b951-d872f2087c98
8 files changed
tree: 508b2b7d634da8e695b290fa50a9737ab56d6a93
  1. depot_tools/
  2. deps/
  3. src/
  4. tools/