Introduce SkAutoMutexExclusive for SkMutex RAII.
Unsubclass SkMutex from SkBaseMutex to allow annotations
for class field mutexes separate from global mutexes.
Leave SkAutoMutexAcquire for handling global mutexes using
SkBaseMutex.
Test using GrSingleOwner.h.
Change-Id: I19d9d0ae0d05206cbb6ef137dc362969048c9c07
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/213136
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Herb Derby <herb@google.com>
Start out with spinlock. I tried to be more extensive, but some
of our abstractions confused the analysis. Will expand further
in following CLs.
Change-Id: I3e320c957d8ef427065a2b7e7d2187b7c6b0aef1
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/213060
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Herb Derby <herb@google.com>