[vm] Support flow events in Dart_TimelineEvent.

runtime/vm/dart_api_impl.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "include/dart_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 
 #include "lib/stacktrace.h"
 #include "platform/assert.h"
@@ skipping 6456 matching lines @@
                                     Dart_Timeline_Event_Type type,
                                     intptr_t argument_count,
                                     const char** argument_names,
                                     const char** argument_values) {
   if (!FLAG_support_timeline) {
     return;
   }
   if (type < Dart_Timeline_Event_Begin) {
     return;
   }
-  if (type > Dart_Timeline_Event_Counter) {
+  if (type > Dart_Timeline_Event_Flow_End) {
     return;
   }
   TimelineStream* stream = Timeline::GetEmbedderStream();
   ASSERT(stream != NULL);
   TimelineEvent* event = stream->StartEvent();
   if (event == NULL) {
     return;
   }
   label = strdup(label);
   switch (type) {
@@ skipping 14 matching lines @@
       break;
     case Dart_Timeline_Event_Async_End:
       event->AsyncEnd(label, timestamp1_or_async_id, timestamp0);
       break;
     case Dart_Timeline_Event_Async_Instant:
       event->AsyncInstant(label, timestamp1_or_async_id, timestamp0);
       break;
     case Dart_Timeline_Event_Counter:
       event->Counter(label, timestamp0);
       break;
+    case Dart_Timeline_Event_Flow_Begin:
+      event->FlowBegin(label, timestamp1_or_async_id, timestamp0);
+      break;
+    case Dart_Timeline_Event_Flow_Step:
+      event->FlowStep(label, timestamp1_or_async_id, timestamp0);
+      break;
+    case Dart_Timeline_Event_Flow_End:
+      event->FlowEnd(label, timestamp1_or_async_id, timestamp0);
+      break;
     default:
       FATAL("Unknown Dart_Timeline_Event_Type");
   }
   event->set_owns_label(true);
   event->SetNumArguments(argument_count);
   for (intptr_t i = 0; i < argument_count; i++) {
     event->CopyArgument(i, argument_names[i], argument_values[i]);
   }
   event->Complete();
 }
@@ skipping 469 matching lines @@
 }
 
 
 DART_EXPORT void Dart_DumpNativeStackTrace(void* context) {
 #ifndef PRODUCT
   Profiler::DumpStackTrace(context);
 #endif
 }
 
 }  // namespace dart