bufferstreams: Make BufferOwner Send+Sync

This is important for IPCs to work, since buffers can come in over the
wire, be processed by binder threads, and handed off to
client-controlled worker threads.

Bug: 296099728
Test: atest
Change-Id: I9c32ac17e07456aa6a8e7211c67893a51fc9724c

parent 3ee8f054

libs/bufferstreams/rust/src/buffers/buffer_owner.rs

+1 −1

Original line number	Diff line number	Diff line
		@@ -16,7 +16,7 @@ use super::Buffer;

		/// Trait that represents an owner of a buffer that might need to handle events such as a buffer
		/// being dropped.
		pub trait BufferOwner {
		pub trait BufferOwner: Send + Sync {
		/// Called when a buffer is dropped.
		fn on_return(&self, buffer: &Buffer);
		}