Translate: move UMA related code in TranslateManager to TranslateManagerMetrics

chrome/browser/translate/translate_manager_metrics_unittest.cc

Index: chrome/browser/translate/translate_manager_metrics_unittest.cc
diff --git a/chrome/browser/translate/translate_manager_metrics_unittest.cc b/chrome/browser/translate/translate_manager_metrics_unittest.cc
index aa418d239dbfed5ee120c0daf6b7ea60a0a9c7d1..91b66aecc2e3c3cbacd809b841c7dca1bba663b8 100644
--- a/chrome/browser/translate/translate_manager_metrics_unittest.cc
+++ b/chrome/browser/translate/translate_manager_metrics_unittest.cc
@@ -65,6 +65,16 @@ class MetricsRecorder {
         TranslateManagerMetrics::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();
+  }
+
  private:
   void Snapshot() {
     HistogramBase* histogram = StatisticsRecorder::FindHistogram(key_);
@@ -127,3 +137,19 @@ TEST(TranslateManagerMetricsTest, ReportInitiationStatus) {
       TranslateManagerMetrics::INITIATION_STATUS_SHOW_INFOBAR);
   recorder.CheckInitiationStatus(1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
 }
+
+TEST(TranslateManagerMetricsTest, ReportLanguageDetectionError) {
+  MetricsRecorder recorder(TranslateManagerMetrics::GetMetricsName(
+      TranslateManagerMetrics::UMA_LANGUAGE_DETECTION_ERROR));
+  EXPECT_EQ(0, recorder.GetTotalCount());
+  TranslateManagerMetrics::ReportLanguageDetectionError();
+  EXPECT_EQ(1, recorder.GetTotalCount());
+}
+
+TEST(TranslateManagerMetricsTest, ReportedUnsupportedLanguage) {
+  MetricsRecorder recorder(TranslateManagerMetrics::GetMetricsName(
+      TranslateManagerMetrics::UMA_SERVER_REPORTED_UNSUPPORTED_LANGUAGE));
+  EXPECT_EQ(0, recorder.GetTotalCount());
+  TranslateManagerMetrics::ReportUnsupportedLanguage();
+  EXPECT_EQ(1, recorder.GetTotalCount());
+}