DevTools: Parallelize trace messages serialization.

base/debug/trace_event_unittest.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/debug/trace_event_unittest.h"
 
 #include <math.h>
 #include <cstdlib>
 
 #include "base/bind.h"
@@ skipping 2410 matching lines @@
   TRACE_EVENT_INSTANT0("callback", "yes", TRACE_EVENT_SCOPE_GLOBAL);
   TraceLog::GetInstance()->SetEventCallbackDisabled();
   TRACE_EVENT_INSTANT0("recording", "no", TRACE_EVENT_SCOPE_GLOBAL);
   TRACE_EVENT_INSTANT0("callback", "no", TRACE_EVENT_SCOPE_GLOBAL);
 
   DropTracedMetadataRecords();
   VerifyCallbackAndRecordedEvents(2, 2);
 }
 
 TEST_F(TraceEventCallbackTest, TraceEventCallbackAndRecordingDuration) {
-  TraceLog::GetInstance()->SetEventCallbackEnabled(CategoryFilter("*"),
-                                                   Callback);
+  TraceLog::GetInstance()->SetEventCallbackEnabled(
+      CategoryFilter("callback"), Callback);
   {
     TRACE_EVENT0("callback", "duration1");
     TraceLog::GetInstance()->SetEnabled(
-        CategoryFilter("*"),
+        CategoryFilter("callback"),
         TraceLog::RECORDING_MODE,
         TraceOptions());
     TRACE_EVENT0("callback", "duration2");
     EndTraceAndFlush();
     TRACE_EVENT0("callback", "duration3");
   }
   TraceLog::GetInstance()->SetEventCallbackDisabled();
 
   ASSERT_EQ(6u, collected_events_names_.size());
   VerifyCollectedEvent(0, TRACE_EVENT_PHASE_BEGIN, "callback", "duration1");
@@ skipping 637 matching lines @@
         EXPECT_EQ(original_option.enable_sampling, new_options.enable_sampling);
         EXPECT_EQ(original_option.enable_systrace, new_options.enable_systrace);
       }
     }
   }
 }
 
 
 }  // namespace debug
 }  // namespace base