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-rw-r--r--blimp/net/blimp_message_checkpointer.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/blimp/net/blimp_message_checkpointer.h b/blimp/net/blimp_message_checkpointer.h
index 66c9894..cd5fd49 100644
--- a/blimp/net/blimp_message_checkpointer.h
+++ b/blimp/net/blimp_message_checkpointer.h
@@ -23,6 +23,8 @@ class BlimpMessageCheckpointObserver;
// Checkpoint/ACK message dispatch may be deferred for a second or
// two to avoid saturating the link with ACK traffic; feature implementations
// need to account for this latency in their design.
+// BlimpMessageCheckpointer is created on the UI thread, and then used and
+// destroyed on the IO thread.
class BLIMP_NET_EXPORT BlimpMessageCheckpointer : public BlimpMessageProcessor {
public:
BlimpMessageCheckpointer(BlimpMessageProcessor* incoming_processor,