Move base to DEPS

base/metrics/histogram_delta_serialization_unittest.cc

-// 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/metrics/histogram_delta_serialization.h"
-
-#include <vector>
-
-#include "base/metrics/histogram.h"
-#include "base/metrics/histogram_base.h"
-#include "base/metrics/statistics_recorder.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace base {
-
-TEST(HistogramDeltaSerializationTest, DeserializeHistogramAndAddSamples) {
-  StatisticsRecorder statistic_recorder;
-  HistogramDeltaSerialization serializer("HistogramDeltaSerializationTest");
-  std::vector<std::string> deltas;
-  // Nothing was changed yet.
-  serializer.PrepareAndSerializeDeltas(&deltas);
-  EXPECT_TRUE(deltas.empty());
-
-  HistogramBase* histogram = Histogram::FactoryGet(
-      "TestHistogram", 1, 1000, 10, HistogramBase::kIPCSerializationSourceFlag);
-  histogram->Add(1);
-  histogram->Add(10);
-  histogram->Add(100);
-  histogram->Add(1000);
-
-  serializer.PrepareAndSerializeDeltas(&deltas);
-  EXPECT_FALSE(deltas.empty());
-
-  HistogramDeltaSerialization::DeserializeAndAddSamples(deltas);
-
-  // The histogram has kIPCSerializationSourceFlag. So samples will be ignored.
-  scoped_ptr<HistogramSamples> snapshot(histogram->SnapshotSamples());
-  EXPECT_EQ(1, snapshot->GetCount(1));
-  EXPECT_EQ(1, snapshot->GetCount(10));
-  EXPECT_EQ(1, snapshot->GetCount(100));
-  EXPECT_EQ(1, snapshot->GetCount(1000));
-
-  // Clear kIPCSerializationSourceFlag to emulate multi-process usage.
-  histogram->ClearFlags(HistogramBase::kIPCSerializationSourceFlag);
-  HistogramDeltaSerialization::DeserializeAndAddSamples(deltas);
-
-  scoped_ptr<HistogramSamples> snapshot2(histogram->SnapshotSamples());
-  EXPECT_EQ(2, snapshot2->GetCount(1));
-  EXPECT_EQ(2, snapshot2->GetCount(10));
-  EXPECT_EQ(2, snapshot2->GetCount(100));
-  EXPECT_EQ(2, snapshot2->GetCount(1000));
-}
-
-}  // namespace base