Switch thread_local to use chromium's TLS implementation
This patch switch thread_local to use ThreadLocalStorage::Slot, so it get the
TLS slot from the chromium's TLS instead of OS's.
There is debate whether the Windows' TLS's destructor implementation is reliable
or not, if we are able to remove all the use of TLS destructor, only ThreadLocalStorage::Slot
needs to change, as thread_local doesn't use TLS destructor at all.
BUG=264406
Review URL: https://codereview.chromium.org/139633003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254986 0039d316-1c4b-4281-b951-d872f2087c98
5 files changed
