As part of an effort to remove use of the NSPR atomic macros in favor of
mozilla::Atomic, the way that threadsafe reference counting works in
XPCOM has changed. Whereas before, this was done using the macros by
saying NS_IMPL_THREADSAFE_ISUPPORTSN (or related macros), now the
threadsafe declaration has been changed to NS_DECL_THREADSAFE_ISUPPORTS
in the class body. All of the affected NS_IMPL_THREADSAFE macros have
been removed as a result, which may cause some patch bustage.
Also related to this change, the NS_AtomicRefcnt functions and
nsAtomicRefcnt.h itself have been removed (use
mozilla::ThreadSafeAutoRefcnt instead).
This change is being tracked in bug 884061 and has landed in
mozilla-inbound already.
--
Joshua Cranmer
Thunderbird and DXR developer
Source code archæologist
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