DevTools: fix concurrency problems in DevToolsFrameTraceRecorder

base/trace_event/trace_event.h

Index: base/trace_event/trace_event.h
diff --git a/base/trace_event/trace_event.h b/base/trace_event/trace_event.h
index c41ca1e56bccb095aa8902b5b65bd3e2ec707d5e..07018b93e0799c1e9134d694ae170961f5303919 100644
--- a/base/trace_event/trace_event.h
+++ b/base/trace_event/trace_event.h
@@ -888,6 +888,14 @@
         category_group, name, TRACE_ID_DONT_MANGLE(id), TRACE_EVENT_FLAG_NONE,\
         "snapshot", snapshot)
 
+#define TRACE_EVENT_OBJECT_SNAPSHOT_WITH_ID_AND_TIMESTAMP(            \
+    category_group, name, id, timestamp, snapshot)                    \
+  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                 \
+      TRACE_EVENT_PHASE_SNAPSHOT_OBJECT, category_group, name,        \
+      TRACE_ID_DONT_MANGLE(id),                                       \
+      static_cast<int>(base::PlatformThread::CurrentId()), timestamp, \
+      TRACE_EVENT_FLAG_NONE, "snapshot", snapshot)
+
 #define TRACE_EVENT_OBJECT_DELETED_WITH_ID(category_group, name, id) \
     INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_DELETE_OBJECT, \
         category_group, name, TRACE_ID_DONT_MANGLE(id), TRACE_EVENT_FLAG_NONE)