Add support for getting the real process id from within the suid sandbox. The...

Add support for getting the real process id from within the suid sandbox. The browser processes gets the real process ids, so they look correct in the task manager. When it asks the zygote to reap a process, we use the process ids internal to the sandbox.

While we are at it, reap the sandbox process after it clones the zygote and figure out zygote's actual process id. Save the actual process id rather than that of the sandbox.

Original review: http://codereview.chromium.org/262020
This is try 2 - initialize the sandbox host and zygote for InProcessBrowserTest.

TBR=agl

BUG=20012, 20714, 23072
TEST=Process IDs for renderers should be correct in the task manager and you should be able to use the end process button to kill them.


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=30948

[Lei Zhang, 2009-11-04 08:30:42]

Only change between this and the original CL is in
chrome/test/in_process_browser_test.cc. I didn't try the original CL for the
longest time because it depended on other CLs, and I forgot to before
committing. This time it should not turn the tree red.

[agl, 2009-11-04 16:22:33]

LGTM