Fix PeerConnectionInterface::StartRtcEventLog documentation.

Logging will not stop after 10 minutes but after the max size of the
file is reached.

Bug: None
No-Try: True
Change-Id: I18c064cc60b52d892d5070b3eddf08749b60604c
Reviewed-on: https://webrtc-review.googlesource.com/c/121959
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26625}
diff --git a/api/peer_connection_interface.h b/api/peer_connection_interface.h
index c3e5207..541a6b4 100644
--- a/api/peer_connection_interface.h
+++ b/api/peer_connection_interface.h
@@ -1057,9 +1057,9 @@
 
   // Starts RtcEventLog using existing file. Takes ownership of |file| and
   // passes it on to Call, which will take the ownership. If the
-  // operation fails the file will be closed. The logging will stop
-  // automatically after 10 minutes have passed, or when the StopRtcEventLog
-  // function is called.
+  // operation fails the file will be closed.
+  // The logging will stop when |max_size_bytes| is reached or when the
+  // StopRtcEventLog function is called.
   // TODO(eladalon): Deprecate and remove this.
   virtual bool StartRtcEventLog(rtc::PlatformFile file, int64_t max_size_bytes);