Change scoped_ptr to a type alias for std::unique_ptr on OS_WIN
This also removes the infinite recursion part of the ReferenceCycle test.
While it's nice not to crash like this, [unique.ptr.single.dtor] doesn't
actually require ~unique_ptr to reset the stored pointer to nullptr on
destruction. Thus, infinite recursion, while not useful, is allowed per
the spec.
BUG=554298,579269
Review URL: https://codereview.chromium.org/1763983002
Cr-Commit-Position: refs/heads/master@{#379962}
5 files changed
