Use a consume load in SkLazyPtr.

src/ports/SkBarriers_tsan.h

Index: src/ports/SkBarriers_tsan.h
diff --git a/src/ports/SkBarriers_tsan.h b/src/ports/SkBarriers_tsan.h
index 6f273907abae1857699b0ef2e4bbe4edbff9c512..d72dbfd390efcc38f83e8b8551fc4bae4fb07ef0 100644
--- a/src/ports/SkBarriers_tsan.h
+++ b/src/ports/SkBarriers_tsan.h
@@ -17,6 +17,12 @@ T sk_acquire_load(T* ptr) {
 }
 
 template <typename T>
+T sk_consume_load(T* ptr) {
+    SkASSERT(__atomic_always_lock_free(sizeof(T), ptr));
+    return __atomic_load_n(ptr, __ATOMIC_CONSUME);
+}
+
+template <typename T>
 void sk_release_store(T* ptr, T val) {
     SkASSERT(__atomic_always_lock_free(sizeof(T), ptr));
     return __atomic_store_n(ptr, val, __ATOMIC_RELEASE);