Code review changes.
diff --git a/src/core/lib/support/orphanable.h b/src/core/lib/support/orphanable.h
index 63eda2e..2f53757 100644
--- a/src/core/lib/support/orphanable.h
+++ b/src/core/lib/support/orphanable.h
@@ -31,11 +31,16 @@
namespace grpc_core {
-// A base class for orphanable objects.
+// A base class for orphanable objects, which have one external owner
+// but are not necessarily destroyed immediately when the external owner
+// gives up ownership. Instead, the owner calls the object's Orphan()
+// method, and the object then takes responsibility for its own cleanup
+// and destruction.
class Orphanable {
public:
// Gives up ownership of the object. The implementation must arrange
- // to destroy the object without further interaction from the caller.
+ // to eventually destroy the object without further interaction from the
+ // caller.
virtual void Orphan() GRPC_ABSTRACT;
// Not copyable or movable.