More timeline cleanups

runtime/vm/dart_api_impl_test.cc

Index: runtime/vm/dart_api_impl_test.cc
diff --git a/runtime/vm/dart_api_impl_test.cc b/runtime/vm/dart_api_impl_test.cc
index da92dac901728dab1eeaf11945dc9c38ea2bd2b0..501091ce9309106c86b0412ee7e485659311fed9 100644
--- a/runtime/vm/dart_api_impl_test.cc
+++ b/runtime/vm/dart_api_impl_test.cc
@@ -9428,7 +9428,7 @@ TEST_CASE(Timeline_Dart_TimelineDuration) {
   TimelineEventRecorder* recorder = Timeline::recorder();
   Timeline::ReclaimCachedBlocksFromThreads();
   JSONStream js;
-  IsolateTimelineEventFilter filter(isolate);
+  IsolateTimelineEventFilter filter(isolate->main_port());
   recorder->PrintJSON(&js, &filter);
   EXPECT_SUBSTRING("testDurationEvent", js.ToCString());
 }
@@ -9445,7 +9445,7 @@ TEST_CASE(Timeline_Dart_TimelineInstant) {
   TimelineEventRecorder* recorder = Timeline::recorder();
   Timeline::ReclaimCachedBlocksFromThreads();
   JSONStream js;
-  IsolateTimelineEventFilter filter(isolate);
+  IsolateTimelineEventFilter filter(isolate->main_port());
   recorder->PrintJSON(&js, &filter);
   EXPECT_SUBSTRING("testInstantEvent", js.ToCString());
 }
@@ -9490,7 +9490,7 @@ TEST_CASE(Timeline_Dart_TimelineAsync) {
   TimelineEventRecorder* recorder = Timeline::recorder();
   Timeline::ReclaimCachedBlocksFromThreads();
   JSONStream js;
-  IsolateTimelineEventFilter filter(isolate);
+  IsolateTimelineEventFilter filter(isolate->main_port());
   recorder->PrintJSON(&js, &filter);
   EXPECT_SUBSTRING("testAsyncEvent", js.ToCString());
 }