Service/ClientDiscardableManager

gpu/command_buffer/common/discardable_handle.cc

Index: gpu/command_buffer/common/discardable_handle.cc
diff --git a/gpu/command_buffer/common/discardable_handle.cc b/gpu/command_buffer/common/discardable_handle.cc
index 987ad821f4508025b1e56665ca4ab7ed0671a82f..d7fa9cd642cd6cde1164ca724cb7e3358f8b2473 100644
--- a/gpu/command_buffer/common/discardable_handle.cc
+++ b/gpu/command_buffer/common/discardable_handle.cc
@@ -30,11 +30,11 @@ DiscardableHandleBase& DiscardableHandleBase::operator=(
 DiscardableHandleBase& DiscardableHandleBase::operator=(
     DiscardableHandleBase&& other) = default;
 
-bool DiscardableHandleBase::IsLockedForTesting() {
+bool DiscardableHandleBase::IsLockedForTesting() const {
   return kHandleLockedStart <= base::subtle::NoBarrier_Load(AsAtomic());
 }
 
-bool DiscardableHandleBase::IsDeletedForTesting() {
+bool DiscardableHandleBase::IsDeletedForTesting() const {
   return kHandleDeleted == base::subtle::NoBarrier_Load(AsAtomic());
 }
 
@@ -114,4 +114,11 @@ bool ServiceDiscardableHandle::Delete() {
                                 AsAtomic(), kHandleUnlocked, kHandleDeleted);
 }
 
+void ServiceDiscardableHandle::ForceDelete() {
+  // No barrier is needed as all GPU process access happens on a single thread,
+  // and communication of dependent data between the GPU process and the
+  // renderer process happens across the command buffer and includes barriers.
+  base::subtle::NoBarrier_Store(AsAtomic(), kHandleDeleted);
+}
+
 }  // namespace gpu