#include "content/browser/metrics/histograms_monitor.h"
#include "base/metrics/histogram_macros.h"
#include "base/metrics/statistics_recorder.h"
#include "content/public/test/browser_task_environment.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
class HistogramsMonitorTest : public testing::Test { … };
TEST_F(HistogramsMonitorTest, StartMonitoringThenGetDiff) { … }
TEST_F(HistogramsMonitorTest, StartMonitoringWithQueryThenGetDiff) { … }
TEST_F(HistogramsMonitorTest, CaseInsensitiveQuery) { … }
}