Revert 212378 "Add a HistogramRecorder class and use cases."

trunk/src/base/test/histogram_recorder_unittest.cc

Index: trunk/src/base/test/histogram_recorder_unittest.cc
===================================================================
--- trunk/src/base/test/histogram_recorder_unittest.cc	(revision 212417)
+++ trunk/src/base/test/histogram_recorder_unittest.cc	(working copy)
@@ -1,34 +0,0 @@
-// Copyright 2013 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/memory/scoped_ptr.h"
-#include "base/metrics/histogram.h"
-#include "base/metrics/histogram_samples.h"
-#include "base/test/histogram_recorder.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace base {
-
-class HistogramRecorderTest : public testing::Test {};
-
-TEST_F(HistogramRecorderTest, Scope) {
-  // Send a histogram before the creation of the recorder.
-  UMA_HISTOGRAM_BOOLEAN("Test", true);
-
-  HistogramRecorder recorder;
-
-  // Verify that no histogram is recorded.
-  EXPECT_FALSE(recorder.GetHistogramSamplesSinceCreation("Test"));
-
-  // Send a histogram after the creation of the recorder.
-  UMA_HISTOGRAM_BOOLEAN("Test", true);
-
-  // Verify that one histogram is recorded.
-  scoped_ptr<HistogramSamples> samples(
-      recorder.GetHistogramSamplesSinceCreation("Test"));
-  EXPECT_TRUE(samples);
-  EXPECT_EQ(1, samples->TotalCount());
-}
-
-}  // namespace base