teach TSAN about SkSpinlock, SkRefCnt, and SkOnce

include/core/SkDynamicAnnotations.h

Index: include/core/SkDynamicAnnotations.h
diff --git a/include/core/SkDynamicAnnotations.h b/include/core/SkDynamicAnnotations.h
index e4493c8e652978b0067295ee1ed59b96e0038be7..6d21cddb940b363d16a614d3b9f54f59af3e7dcf 100644
--- a/include/core/SkDynamicAnnotations.h
+++ b/include/core/SkDynamicAnnotations.h
@@ -19,10 +19,6 @@ extern "C" {
 // TSAN provides these hooks.
 void AnnotateIgnoreReadsBegin(const char* file, int line);
 void AnnotateIgnoreReadsEnd(const char* file, int line);
-void AnnotateHappensBefore(const char* file, int line, const volatile void* ptr);
-void AnnotateHappensAfter(const char* file, int line, const volatile void* ptr);
-void AnnotateRWLockAcquired(const char* file, int line, const volatile void* lock, long is_w);
-void AnnotateRWLockReleased(const char* file, int line, const volatile void* lock, long is_w);
 }  // extern "C"
 
 // SK_ANNOTATE_UNPROTECTED_READ can wrap any variable read to tell TSAN to ignore that it appears to
@@ -41,19 +37,9 @@ inline T SK_ANNOTATE_UNPROTECTED_READ(const volatile T& x) {
     return read;
 }
 
-#define SK_ANNOTATE_HAPPENS_BEFORE(obj) AnnotateHappensBefore(__FILE__, __LINE__, obj)
-#define SK_ANNOTATE_HAPPENS_AFTER(obj)  AnnotateHappensAfter(__FILE__, __LINE__, obj)
-
-#define SK_ANNOTATE_RWLOCK_ACQUIRED(lock, w) AnnotateRWLockAcquired(__FILE__, __LINE__, lock, w)
-#define SK_ANNOTATE_RWLOCK_RELEASED(lock, w) AnnotateRWLockReleased(__FILE__, __LINE__, lock, w)
-
 #else  // !DYNAMIC_ANNOTATIONS_ENABLED
 
 #define SK_ANNOTATE_UNPROTECTED_READ(x) (x)
-#define SK_ANNOTATE_HAPPENS_BEFORE(obj)
-#define SK_ANNOTATE_HAPPENS_AFTER(obj)
-#define SK_ANNOTATE_RWLOCK_ACQUIRED(lock, w)
-#define SK_ANNOTATE_RWLOCK_RELEASED(lock, w)
 
 #endif