Fix TraceEventTestFixture flakiness

base/test/trace_event_analyzer_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/bind.h"
+#include "base/debug/trace_event_unittest.h"
 #include "base/test/trace_event_analyzer.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace trace_analyzer {
 
 namespace {
 
 class TraceEventAnalyzerTest : public testing::Test {
  public:
@@ skipping 369 matching lines @@
   // sleep time, so that there is no flakiness.
   int duration_cutoff_us = (kSleepTime.InMicroseconds() * 9) / 10;
 
   BeginTracing();
   {
     TRACE_EVENT0("cat1", "name1"); // found by duration query
     TRACE_EVENT0("noise", "name2"); // not searched for, just noise
     {
       TRACE_EVENT0("cat2", "name3"); // found by duration query
       TRACE_EVENT_INSTANT0("noise", "name4"); // not searched for, just noise
-      base::PlatformThread::Sleep(kSleepTime);
+      base::debug::HighResSleepForTraceTest(kSleepTime);
       TRACE_EVENT0("cat2", "name5"); // not found (duration too short)
     }
   }
   EndTracing();
 
   scoped_ptr<TraceAnalyzer>
       analyzer(TraceAnalyzer::Create(output_.json_output));
   ASSERT_TRUE(analyzer.get());
   analyzer->AssociateBeginEndEvents();
 
@@ skipping 412 matching lines @@
   EXPECT_EQ(num_events, CountMatches(event_ptrs, Query::Bool(true)));
   EXPECT_EQ(num_events - 1, CountMatches(event_ptrs, Query::Bool(true),
                                          1, num_events));
   EXPECT_EQ(1u, CountMatches(event_ptrs, query_one));
   EXPECT_EQ(num_events - 1, CountMatches(event_ptrs, !query_one));
   EXPECT_EQ(num_named, CountMatches(event_ptrs, query_named));
 }
 
 
 }  // namespace trace_analyzer