ART: SHARED_REQUIRES to REQUIRES_SHARED

This coincides with the actual attribute name and upstream usage.
Preparation for deferring to libbase.

Test: m
Test: m test-art-host
Change-Id: Ia8986b5dfd926ba772bf00b0a35eaf83596d8518
diff --git a/runtime/class_linker-inl.h b/runtime/class_linker-inl.h
index 97aa499..caabcde 100644
--- a/runtime/class_linker-inl.h
+++ b/runtime/class_linker-inl.h
@@ -222,7 +222,7 @@
 }
 
 inline mirror::Class* ClassLinker::GetClassRoot(ClassRoot class_root)
-    SHARED_REQUIRES(Locks::mutator_lock_) {
+    REQUIRES_SHARED(Locks::mutator_lock_) {
   DCHECK(!class_roots_.IsNull());
   mirror::ObjectArray<mirror::Class>* class_roots = class_roots_.Read();
   mirror::Class* klass = class_roots->Get(class_root);