Added and replaced some UMAs

chrome/browser/translate/translate_manager_metrics.cc

Index: chrome/browser/translate/translate_manager_metrics.cc
diff --git a/chrome/browser/translate/translate_manager_metrics.cc b/chrome/browser/translate/translate_manager_metrics.cc
index 5b11d30548b4e0b698074cad0e3ff7a83357eff0..b5a81f80944dc0560b1c2191a6eee46657005c12 100644
--- a/chrome/browser/translate/translate_manager_metrics.cc
+++ b/chrome/browser/translate/translate_manager_metrics.cc
@@ -4,8 +4,12 @@
 
 #include "chrome/browser/translate/translate_manager_metrics.h"
 
+#include <string>
+
 #include "base/basictypes.h"
 #include "base/metrics/histogram.h"
+#include "base/metrics/sparse_histogram.h"
+#include "chrome/common/metrics/metrics_util.h"
 
 namespace {
 
@@ -17,6 +21,10 @@ const char kTranslateReportLanguageDetectionError[] =
     "Translate.ReportLanguageDetectionError";
 const char kTranslateServerReportedUnsupportedLanguage[] =

[Takashi Toyoshima, 2013/05/21 11:11:43]

Remove value for the obsoleted UMA.

[hajimehoshi, 2013/05/22 04:19:27]

Done.

     "Translate.ServerReportedUnsupportedLanguage";
+const char kTranslateUnavailableLanguage[] =
+    "Translate.UnavailableLanguage";
+const char kTranslateUnsupportedLanguageAtInitiation[] =
+    "Translate.UnsupportedLanguageAtInitiation";
 
 struct MetricsEntry {
   TranslateManagerMetrics::MetricsNameIndex index;
@@ -31,6 +39,10 @@ const MetricsEntry kMetricsEntries[] = {
     kTranslateReportLanguageDetectionError },
   { TranslateManagerMetrics::UMA_SERVER_REPORTED_UNSUPPORTED_LANGUAGE,

[Takashi Toyoshima, 2013/05/21 11:11:43]

remove obsoleted one.

[hajimehoshi, 2013/05/22 04:19:27]

Done.

     kTranslateServerReportedUnsupportedLanguage },
+  { TranslateManagerMetrics::UMA_UNAVAILABLE_LANGUAGE,
+    kTranslateUnavailableLanguage },
+  { TranslateManagerMetrics::UMA_UNSUPPORTED_LANGUAGE_AT_INITIATION,
+    kTranslateUnsupportedLanguageAtInitiation },
 };
 
 COMPILE_ASSERT(arraysize(kMetricsEntries) == TranslateManagerMetrics::UMA_MAX,
@@ -50,8 +62,16 @@ void ReportLanguageDetectionError() {
   UMA_HISTOGRAM_COUNTS(kTranslateReportLanguageDetectionError, 1);
 }
 
-void ReportUnsupportedLanguage() {
-  UMA_HISTOGRAM_COUNTS(kTranslateServerReportedUnsupportedLanguage, 1);
+void ReportUnavailableLanguage(const std::string& language) {
+  int language_code = metrics::ToLanguageCode(language);
+  UMA_HISTOGRAM_SPARSE_SLOWLY(kTranslateUnavailableLanguage,
+                              language_code);
+}
+
+void ReportUnsupportedLanguageAtInitiation(const std::string& language) {
+  int language_code = metrics::ToLanguageCode(language);
+  UMA_HISTOGRAM_SPARSE_SLOWLY(kTranslateUnsupportedLanguageAtInitiation,
+                              language_code);
 }
 
 const char* GetMetricsName(MetricsNameIndex index) {