Binds two IDs together.

base/trace_event/trace_event_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/trace_event/trace_event_impl.h"
 
 #include <stddef.h>
 
 #include "base/format_macros.h"
 #include "base/json/string_escape.h"
@@ skipping 350 matching lines @@
   if (flags_ & TRACE_EVENT_FLAG_HAS_ID) {
     if (scope_ != trace_event_internal::kGlobalScope)
       StringAppendF(out, ",\"scope\":\"%s\"", scope_);
     StringAppendF(out, ",\"id\":\"0x%" PRIx64 "\"", static_cast<uint64_t>(id_));
   }
 
   if (flags_ & TRACE_EVENT_FLAG_BIND_TO_ENCLOSING)
     StringAppendF(out, ",\"bp\":\"e\"");
 
   if ((flags_ & TRACE_EVENT_FLAG_FLOW_OUT) ||
-      (flags_ & TRACE_EVENT_FLAG_FLOW_IN)) {
+      (flags_ & TRACE_EVENT_FLAG_FLOW_IN) ||
+      phase_ == TRACE_EVENT_PHASE_BIND_IDS) {
     StringAppendF(out, ",\"bind_id\":\"0x%" PRIx64 "\"",
                   static_cast<uint64_t>(bind_id_));
   }
   if (flags_ & TRACE_EVENT_FLAG_FLOW_IN)
     StringAppendF(out, ",\"flow_in\":true");
   if (flags_ & TRACE_EVENT_FLAG_FLOW_OUT)
     StringAppendF(out, ",\"flow_out\":true");
 
   // Instant events also output their scope.
   if (phase_ == TRACE_EVENT_PHASE_INSTANT) {
@@ skipping 35 matching lines @@
         AppendValueAsJSON(arg_types_[i], arg_values_[i], &value_as_text);
 
       *out << value_as_text;
     }
     *out << "}";
   }
 }
 
 }  // namespace trace_event
 }  // namespace base