Update gtest to 786564fa4a3c, switch to googlemock in gtest

base/test/histogram_tester.cc

 // Copyright 2014 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/test/histogram_tester.h"
 
 #include "base/metrics/histogram.h"
 #include "base/metrics/histogram_samples.h"
 #include "base/metrics/sample_map.h"
 #include "base/metrics/statistics_recorder.h"
 #include "base/stl_util.h"
-#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/gtest/googletest/include/gtest/gtest.h"
 
 namespace base {
 
 HistogramTester::HistogramTester() {
   StatisticsRecorder::Initialize();  // Safe to call multiple times.
 
   // Record any histogram data that exists when the object is created so it can
   // be subtracted later.
   StatisticsRecorder::Histograms histograms;
   StatisticsRecorder::GetSnapshot(std::string(), &histograms);
@@ skipping 143 matching lines @@
 
 bool Bucket::operator==(const Bucket& other) const {
   return min == other.min && count == other.count;
 }
 
 void PrintTo(const Bucket& bucket, std::ostream* os) {
   *os << "Bucket " << bucket.min << ": " << bucket.count;
 }
 
 }  // namespace base