Use disabled-by-default prefix in logging NetLog events to TraceLog

net/base/trace_net_log_observer.cc

 // Copyright 2014 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 "net/base/trace_net_log_observer.h"
 
 #include <stdio.h>
 
 #include <string>
 
@@ skipping 22 matching lines @@
       *out += tmp;
     } else {
       *out += "\"\"";
     }
   }
 
  private:
   scoped_ptr<base::Value> value_;
 };
 
+// TraceLog category for NetLog events.
+const char kNetLogTracingCategory[] = "disabled-by-default-netlog";
+
 }  // namespace
 
 TraceNetLogObserver::TraceNetLogObserver() : net_log_to_watch_(NULL) {
 }
 
 TraceNetLogObserver::~TraceNetLogObserver() {
   DCHECK(!net_log_to_watch_);
   DCHECK(!net_log());
 }
 
 void TraceNetLogObserver::OnAddEntry(const NetLog::Entry& entry) {
   scoped_ptr<base::Value> params(entry.ParametersToValue());
   switch (entry.phase()) {
     case NetLog::PHASE_BEGIN:
       TRACE_EVENT_NESTABLE_ASYNC_BEGIN2(
-          "netlog", NetLog::EventTypeToString(entry.type()), entry.source().id,
+          kNetLogTracingCategory,
+          NetLog::EventTypeToString(entry.type()), entry.source().id,
           "source_type", NetLog::SourceTypeToString(entry.source().type),
           "params", scoped_refptr<base::debug::ConvertableToTraceFormat>(
               new TracedValue(params.Pass())));
       break;
     case NetLog::PHASE_END:
       TRACE_EVENT_NESTABLE_ASYNC_END2(
-          "netlog", NetLog::EventTypeToString(entry.type()), entry.source().id,
+          kNetLogTracingCategory,
+          NetLog::EventTypeToString(entry.type()), entry.source().id,
           "source_type", NetLog::SourceTypeToString(entry.source().type),
           "params", scoped_refptr<base::debug::ConvertableToTraceFormat>(
               new TracedValue(params.Pass())));
       break;
     case NetLog::PHASE_NONE:
       TRACE_EVENT_NESTABLE_ASYNC_INSTANT2(
-          "netlog", NetLog::EventTypeToString(entry.type()), entry.source().id,
+          kNetLogTracingCategory,
+          NetLog::EventTypeToString(entry.type()), entry.source().id,
           "source_type", NetLog::SourceTypeToString(entry.source().type),
           "params", scoped_refptr<base::debug::ConvertableToTraceFormat>(
               new TracedValue(params.Pass())));
       break;
   }
 }
 
 void TraceNetLogObserver::WatchForTraceStart(NetLog* netlog) {
   DCHECK(!net_log_to_watch_);
   DCHECK(!net_log());
@@ skipping 14 matching lines @@
   net_log_to_watch_->AddThreadSafeObserver(this,
                                            NetLog::LOG_STRIP_PRIVATE_DATA);
 }
 
 void TraceNetLogObserver::OnTraceLogDisabled() {
   if (net_log())
     net_log()->RemoveThreadSafeObserver(this);
 }
 
 }  // namespace net