Oilpan: Add a verification to check that Persistent is created and destructed in the same thread
Oilpan: Add a verification to check that Persistent is created and destructed in the same thread

This will be helpful to detect errors like https://code.google.com/p/chromium/issues/detail?id=507307

BUG=420515

Review URL: https://codereview.chromium.org/1224033002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@198557 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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