tracing: Support periodic incremental state clearing
Make the tracing muxer implement the incremental state clearing message
from the service. This makes it possible to trace into a ring buffer
without losing data when wrapping around.
Note that each data source still needs to emit a packet with the
SEQ_INCREMENTAL_STATE_CLEARED flag to indicate that incremental state
was reset.
Bug: 180293756
Change-Id: Ia54a9ffda3e8871cc30e2b5857a3201c660d8cd0
diff --git a/CHANGELOG b/CHANGELOG
index 901fd17..53d4285 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -10,6 +10,8 @@
identifier, allowing multiple independent users of the SDK in the same
process to interleave their events on shared tracks.
* Record process and thread names into the trace.
+ * Add ring buffer tracing support, i.e., periodic clearing of incremental
+ state.
v12.1 - 2021-02-01: