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/read_barrier.h b/runtime/read_barrier.h
index 5d32c09..a861861 100644
--- a/runtime/read_barrier.h
+++ b/runtime/read_barrier.h
@@ -48,39 +48,39 @@
             bool kAlwaysUpdateField = false>
   ALWAYS_INLINE static MirrorType* Barrier(
       mirror::Object* obj, MemberOffset offset, mirror::HeapReference<MirrorType>* ref_addr)
-      SHARED_REQUIRES(Locks::mutator_lock_);
+      REQUIRES_SHARED(Locks::mutator_lock_);
 
   // It's up to the implementation whether the given root gets updated
   // whereas the return value must be an updated reference.
   template <typename MirrorType, ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
   ALWAYS_INLINE static MirrorType* BarrierForRoot(MirrorType** root,
                                                   GcRootSource* gc_root_source = nullptr)
-      SHARED_REQUIRES(Locks::mutator_lock_);
+      REQUIRES_SHARED(Locks::mutator_lock_);
 
   // It's up to the implementation whether the given root gets updated
   // whereas the return value must be an updated reference.
   template <typename MirrorType, ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
   ALWAYS_INLINE static MirrorType* BarrierForRoot(mirror::CompressedReference<MirrorType>* root,
                                                   GcRootSource* gc_root_source = nullptr)
-      SHARED_REQUIRES(Locks::mutator_lock_);
+      REQUIRES_SHARED(Locks::mutator_lock_);
 
   static bool IsDuringStartup();
 
   // Without the holder object.
   static void AssertToSpaceInvariant(mirror::Object* ref)
-      SHARED_REQUIRES(Locks::mutator_lock_) {
+      REQUIRES_SHARED(Locks::mutator_lock_) {
     AssertToSpaceInvariant(nullptr, MemberOffset(0), ref);
   }
   // With the holder object.
   static void AssertToSpaceInvariant(mirror::Object* obj, MemberOffset offset,
                                      mirror::Object* ref)
-      SHARED_REQUIRES(Locks::mutator_lock_);
+      REQUIRES_SHARED(Locks::mutator_lock_);
   // With GcRootSource.
   static void AssertToSpaceInvariant(GcRootSource* gc_root_source, mirror::Object* ref)
-      SHARED_REQUIRES(Locks::mutator_lock_);
+      REQUIRES_SHARED(Locks::mutator_lock_);
 
   // ALWAYS_INLINE on this caused a performance regression b/26744236.
-  static mirror::Object* Mark(mirror::Object* obj) SHARED_REQUIRES(Locks::mutator_lock_);
+  static mirror::Object* Mark(mirror::Object* obj) REQUIRES_SHARED(Locks::mutator_lock_);
 
   static mirror::Object* WhitePtr() {
     return reinterpret_cast<mirror::Object*>(white_ptr_);
@@ -94,7 +94,7 @@
 
   ALWAYS_INLINE static bool HasGrayReadBarrierPointer(mirror::Object* obj,
                                                       uintptr_t* out_rb_ptr_high_bits)
-      SHARED_REQUIRES(Locks::mutator_lock_);
+      REQUIRES_SHARED(Locks::mutator_lock_);
 
   // Note: These couldn't be constexpr pointers as reinterpret_cast isn't compatible with them.
   static constexpr uintptr_t white_ptr_ = 0x0;    // Not marked.