Merge r7612 "In ProfilerSignalHandler ensure that thread we are trying
to sample locked the isolate" to trunk.

BUG=http://crbug.com/77725
TBR=vegorov@chromium.org
Review URL: http://codereview.chromium.org/6875016

git-svn-id: http://v8.googlecode.com/svn/trunk@7638 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2 files changed