Properly lock access to static variables....

net/socket_stream/socket_stream_metrics_unittest.cc

 // Copyright (c) 2009 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/basictypes.h"
 #include "base/metrics/histogram.h"
 #include "googleurl/src/gurl.h"
 #include "net/socket_stream/socket_stream_metrics.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
 using base::Histogram;
 using base::StatisticsRecorder;
 
 namespace net {
 
 TEST(SocketStreamMetricsTest, Initialize) {
-  if (!StatisticsRecorder::WasStarted()) {
+  if (!StatisticsRecorder::IsActive()) {
     // Create the recorder if not yet started, as SocketStreamMetrics
     // relys on the StatisticsRecorder to be present. This is useful when
     // tests are run with --gtest_filter='SocketStreamMetricsTest*'.
     static StatisticsRecorder *recorder = NULL;
     recorder = new StatisticsRecorder;
   }
 }
 
 TEST(SocketStreamMetricsTest, ProtocolType) {
   scoped_refptr<Histogram> histogram;
@@ skipping 146 matching lines @@
 
   // SentCounts.
   ASSERT_TRUE(StatisticsRecorder::FindHistogram(
       "Net.SocketStream.SentCounts", &histogram));
   EXPECT_EQ(Histogram::kUmaTargetedHistogramFlag, histogram->flags());
   histogram->SnapshotSample(&sample);
   EXPECT_EQ(3, sample.sum() - original_sent_counts);  // 3 write requests.
 }
 
 }  // namespace net