[Tracing] Add metadata filter

content/browser/tracing/tracing_controller_impl.cc

Index: content/browser/tracing/tracing_controller_impl.cc
diff --git a/content/browser/tracing/tracing_controller_impl.cc b/content/browser/tracing/tracing_controller_impl.cc
index 13a5333fe5a642659586045f42420e0b4ed51aad..012b1157dfb8c08f2dde8d633386060785742c64 100644
--- a/content/browser/tracing/tracing_controller_impl.cc
+++ b/content/browser/tracing/tracing_controller_impl.cc
@@ -284,8 +284,13 @@ bool TracingControllerImpl::StopTracing(
     const scoped_refptr<TraceDataSink>& trace_data_sink) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
-  if (trace_data_sink)
+  if (trace_data_sink) {
+    if (TraceLog::GetInstance()->GetCurrentTraceConfig()
+        .IsArgumentFilterEnabled()) {
+      trace_data_sink->EnableMetadataFilter();
+    }
     trace_data_sink->AddMetadata(*GenerateTracingMetadataDict().get());
+  }
 
   if (!can_stop_tracing())
     return false;