DO NOT SUBMIT: In-process tracing for debugging tests

base/debug/trace_event_impl.cc

Index: base/debug/trace_event_impl.cc
diff --git a/base/debug/trace_event_impl.cc b/base/debug/trace_event_impl.cc
index 6c72fc37bee2bcf75480ec8c8c072ed73e653e1e..5427eb85b00060b5c181be2d8fda923efffdc551 100644
--- a/base/debug/trace_event_impl.cc
+++ b/base/debug/trace_event_impl.cc
@@ -1562,7 +1562,7 @@ void TraceLog::Flush(const TraceLog::OutputCallback& cb) {
           FROM_HERE,
           Bind(&TraceLog::OnFlushTimeout, Unretained(this), generation),
           TimeDelta::FromMilliseconds(kThreadFlushTimeoutMs));
-      return;
+      //return;
     }
   }