Move LanguageUsageMetrics and TranslateBrowserMetrics to components

chrome/browser/translate/translate_browser_metrics_unittest.cc

Index: chrome/browser/translate/translate_browser_metrics_unittest.cc
diff --git a/chrome/browser/translate/translate_browser_metrics_unittest.cc b/chrome/browser/translate/translate_browser_metrics_unittest.cc
deleted file mode 100644
index a7e31498d52a2d404fd2bcc1e6e3af97d4960c9b..0000000000000000000000000000000000000000
--- a/chrome/browser/translate/translate_browser_metrics_unittest.cc
+++ /dev/null
@@ -1,187 +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 "chrome/browser/translate/translate_browser_metrics.h"
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/metrics/histogram.h"
-#include "base/metrics/histogram_samples.h"
-#include "base/metrics/statistics_recorder.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "testing/platform_test.h"
-
-using base::HistogramBase;
-using base::HistogramSamples;
-using base::StatisticsRecorder;
-
-namespace {
-
-class MetricsRecorder {
- public:
-  explicit MetricsRecorder(const char* key) : key_(key) {
-    StatisticsRecorder::Initialize();
-
-    HistogramBase* histogram = StatisticsRecorder::FindHistogram(key_);
-    if (histogram)
-      base_samples_ = histogram->SnapshotSamples();
-  }
-
-  void CheckInitiationStatus(int expected_disabled_by_prefs,
-                             int expected_disabled_by_switch,
-                             int expected_disabled_by_config,
-                             int expected_language_is_not_supported,
-                             int expected_mime_type_is_not_supported,
-                             int expected_url_is_not_supported,
-                             int expected_similar_languages,
-                             int expected_accept_languages,
-                             int expected_auto_by_config,
-                             int expected_auto_by_link,
-                             int expected_show_infobar) {
-    Snapshot();
-
-    EXPECT_EQ(expected_disabled_by_prefs, GetCountWithoutSnapshot(
-        TranslateBrowserMetrics::INITIATION_STATUS_DISABLED_BY_PREFS));
-    EXPECT_EQ(expected_disabled_by_switch, GetCountWithoutSnapshot(
-        TranslateBrowserMetrics::INITIATION_STATUS_DISABLED_BY_SWITCH));
-    EXPECT_EQ(expected_disabled_by_config, GetCountWithoutSnapshot(
-        TranslateBrowserMetrics::INITIATION_STATUS_DISABLED_BY_CONFIG));
-    EXPECT_EQ(expected_language_is_not_supported, GetCountWithoutSnapshot(
-        TranslateBrowserMetrics::INITIATION_STATUS_LANGUAGE_IS_NOT_SUPPORTED));
-    EXPECT_EQ(expected_mime_type_is_not_supported, GetCountWithoutSnapshot(
-        TranslateBrowserMetrics::INITIATION_STATUS_MIME_TYPE_IS_NOT_SUPPORTED));
-    EXPECT_EQ(expected_url_is_not_supported, GetCountWithoutSnapshot(
-        TranslateBrowserMetrics::INITIATION_STATUS_URL_IS_NOT_SUPPORTED));
-    EXPECT_EQ(expected_similar_languages, GetCountWithoutSnapshot(
-        TranslateBrowserMetrics::INITIATION_STATUS_SIMILAR_LANGUAGES));
-    EXPECT_EQ(expected_accept_languages, GetCountWithoutSnapshot(
-        TranslateBrowserMetrics::INITIATION_STATUS_ACCEPT_LANGUAGES));
-    EXPECT_EQ(expected_auto_by_config, GetCountWithoutSnapshot(
-        TranslateBrowserMetrics::INITIATION_STATUS_AUTO_BY_CONFIG));
-    EXPECT_EQ(expected_auto_by_link, GetCountWithoutSnapshot(
-        TranslateBrowserMetrics::INITIATION_STATUS_AUTO_BY_LINK));
-    EXPECT_EQ(expected_show_infobar, GetCountWithoutSnapshot(
-        TranslateBrowserMetrics::INITIATION_STATUS_SHOW_INFOBAR));
-  }
-
-  HistogramBase::Count GetTotalCount() {
-    Snapshot();
-    if (!samples_.get())
-      return 0;
-    HistogramBase::Count count = samples_->TotalCount();
-    if (!base_samples_.get())
-      return count;
-    return count - base_samples_->TotalCount();
-  }
-
-  HistogramBase::Count GetCount(HistogramBase::Sample value) {
-    Snapshot();
-    return GetCountWithoutSnapshot(value);
-  }
-
- private:
-  void Snapshot() {
-    HistogramBase* histogram = StatisticsRecorder::FindHistogram(key_);
-    if (!histogram)
-      return;
-    samples_ = histogram->SnapshotSamples();
-  }
-
-  HistogramBase::Count GetCountWithoutSnapshot(HistogramBase::Sample value) {
-    if (!samples_.get())
-      return 0;
-    HistogramBase::Count count = samples_->GetCount(value);
-    if (!base_samples_.get())
-      return count;
-    return count - base_samples_->GetCount(value);
-  }
-
-  std::string key_;
-  scoped_ptr<HistogramSamples> base_samples_;
-  scoped_ptr<HistogramSamples> samples_;
-
-  DISALLOW_COPY_AND_ASSIGN(MetricsRecorder);
-};
-
-}  // namespace
-
-TEST(TranslateBrowserMetricsTest, ReportInitiationStatus) {
-  MetricsRecorder recorder(TranslateBrowserMetrics::GetMetricsName(
-      TranslateBrowserMetrics::UMA_INITIATION_STATUS));
-
-  recorder.CheckInitiationStatus(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
-  TranslateBrowserMetrics::ReportInitiationStatus(
-      TranslateBrowserMetrics::INITIATION_STATUS_DISABLED_BY_PREFS);
-  recorder.CheckInitiationStatus(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
-  TranslateBrowserMetrics::ReportInitiationStatus(
-      TranslateBrowserMetrics::INITIATION_STATUS_DISABLED_BY_SWITCH);
-  recorder.CheckInitiationStatus(1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0);
-  TranslateBrowserMetrics::ReportInitiationStatus(
-      TranslateBrowserMetrics::INITIATION_STATUS_DISABLED_BY_CONFIG);
-  recorder.CheckInitiationStatus(1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0);
-  TranslateBrowserMetrics::ReportInitiationStatus(
-      TranslateBrowserMetrics::INITIATION_STATUS_LANGUAGE_IS_NOT_SUPPORTED);
-  recorder.CheckInitiationStatus(1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0);
-  TranslateBrowserMetrics::ReportInitiationStatus(
-      TranslateBrowserMetrics::INITIATION_STATUS_MIME_TYPE_IS_NOT_SUPPORTED);
-  recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0);
-  TranslateBrowserMetrics::ReportInitiationStatus(
-      TranslateBrowserMetrics::INITIATION_STATUS_URL_IS_NOT_SUPPORTED);
-  recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0);
-  TranslateBrowserMetrics::ReportInitiationStatus(
-      TranslateBrowserMetrics::INITIATION_STATUS_SIMILAR_LANGUAGES);
-  recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0);
-  TranslateBrowserMetrics::ReportInitiationStatus(
-      TranslateBrowserMetrics::INITIATION_STATUS_ACCEPT_LANGUAGES);
-  recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0);
-  TranslateBrowserMetrics::ReportInitiationStatus(
-      TranslateBrowserMetrics::INITIATION_STATUS_AUTO_BY_CONFIG);
-  recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0);
-  TranslateBrowserMetrics::ReportInitiationStatus(
-      TranslateBrowserMetrics::INITIATION_STATUS_AUTO_BY_LINK);
-  recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0);
-  TranslateBrowserMetrics::ReportInitiationStatus(
-      TranslateBrowserMetrics::INITIATION_STATUS_SHOW_INFOBAR);
-  recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
-}
-
-TEST(TranslateBrowserMetricsTest, ReportLanguageDetectionError) {
-  MetricsRecorder recorder(TranslateBrowserMetrics::GetMetricsName(
-      TranslateBrowserMetrics::UMA_LANGUAGE_DETECTION_ERROR));
-  EXPECT_EQ(0, recorder.GetTotalCount());
-  TranslateBrowserMetrics::ReportLanguageDetectionError();
-  EXPECT_EQ(1, recorder.GetTotalCount());
-
-}
-
-
-TEST(TranslateBrowserMetricsTest, ReportedLocalesOnDisabledByPrefs) {
-  const int ENGLISH = 25966;
-
-  MetricsRecorder recorder(TranslateBrowserMetrics::GetMetricsName(
-      TranslateBrowserMetrics::UMA_LOCALES_ON_DISABLED_BY_PREFS));
-  EXPECT_EQ(0, recorder.GetTotalCount());
-  TranslateBrowserMetrics::ReportLocalesOnDisabledByPrefs("en");
-  EXPECT_EQ(1, recorder.GetCount(ENGLISH));
-}
-
-TEST(TranslateBrowserMetricsTest, ReportedUndisplayableLanguage) {
-  const int ENGLISH = 25966;
-
-  MetricsRecorder recorder(TranslateBrowserMetrics::GetMetricsName(
-      TranslateBrowserMetrics::UMA_UNDISPLAYABLE_LANGUAGE));
-  EXPECT_EQ(0, recorder.GetTotalCount());
-  TranslateBrowserMetrics::ReportUndisplayableLanguage("en");
-  EXPECT_EQ(1, recorder.GetCount(ENGLISH));
-}
-
-TEST(TranslateBrowserMetricsTest, ReportedUnsupportedLanguageAtInitiation) {
-  const int ENGLISH = 25966;
-
-  MetricsRecorder recorder(TranslateBrowserMetrics::GetMetricsName(
-      TranslateBrowserMetrics::UMA_UNSUPPORTED_LANGUAGE_AT_INITIATION));
-  EXPECT_EQ(0, recorder.GetTotalCount());
-  TranslateBrowserMetrics::ReportUnsupportedLanguageAtInitiation("en");
-  EXPECT_EQ(1, recorder.GetCount(ENGLISH));
-}