Backout 7cbe50231e18 (bug 1103825) for xpcshell test failures

toolkit/crashreporter/test/unit_ipc/test_content_annotation.js was
failing with this commit applied. Backing out.
Backout 69f755d4f257 (bug 1103825) for test failures

xpcom/tests/unit/test_nsIProcess.js and
xpcom/tests/unit/test_nsIProcess_stress.js were failing with this commit
applied. Backout out.

CLOSED TREE

--HG--
extra : amend_source : 79cda414c263d97e77309da6ec6d58718b91d199