[css-view-transition-2] Clarify timeout behavior for inbound view tra…

…nsition (w3c#10817)

css-view-transitions-2/Overview.bs

@@ -992,6 +992,14 @@ The [=captured element=] struct should contain these fields, in addition to the
 
 			Note: The inbound transition is activated after the dispatch of {{Window/pagereveal}} to ensure mutations made in this event apply to the captured new state.
 
+		1. To skip the transition after a timeout, the user agent may perform the following steps [=in parallel=]:
+
+			1. Wait for an [=implementation-defined=] [=duration=].
+
+			1. [=Queue a global task=] on the [=DOM manipulation task source=] given |newDocument|'s [=relevant global object=] to perform the following step:
+
+				1. If |newDocument|'s [=inbound view transition params=] is |params|, then set |newDocument|'s [=inbound view transition params=] to null.
+
 		1. Call |proceedWithNavigation|.
 
 	1. Set |oldDocument|'s [=active view transition=] to |outboundTransition|.
@@ -1087,9 +1095,6 @@ Prepend the following step to the [=Perform pending transition operations=] algo
 
 	1. Set |transition|'s [=ViewTransition/active types=] to |resolvedRule|.
 
-	1. At any given time, the UA may decide to skip the inbound transition, e.g. after an [=implementation-defined=] timeout.
-		To do so, the UA should [=queue a global task=] on the [=DOM manipulation task source=] given |document|'s [=relevant global object=] to perform the following step:
-			If |transition|'s [=ViewTransition/phase=] is not "`done`", then [=skip the view transition=] |transition| with a "{{TimeoutError}}" {{DOMException}}.
 
 	1. Return |transition|.
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