Cleanup: Use http/https constants in components.

components/translate/core/common/translate_metrics.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 "components/translate/core/common/translate_metrics.h"
 
 #include "base/basictypes.h"
 #include "base/metrics/histogram.h"
+#include "url/url_constants.h"
 
 namespace translate {
 
 namespace {
 
 // Constant string values to indicate UMA names. All entries should have
 // a corresponding index in MetricsNameIndex and an entry in |kMetricsEntries|.
 const char kRenderer4LanguageDetection[] = "Renderer4.LanguageDetection";
 const char kTranslateContentLanguage[] = "Translate.ContentLanguage";
 const char kTranslateHtmlLang[] = "Translate.HtmlLang";
 const char kTranslateLanguageVerification[] = "Translate.LanguageVerification";
 const char kTranslateTimeToBeReady[] = "Translate.TimeToBeReady";
 const char kTranslateTimeToLoad[] = "Translate.TimeToLoad";
 const char kTranslateTimeToTranslate[] = "Translate.TimeToTranslate";
 const char kTranslateUserActionDuration[] = "Translate.UserActionDuration";
 const char kTranslatePageScheme[] = "Translate.PageScheme";
 const char kTranslateSimilarLanguageMatch[] = "Translate.SimilarLanguageMatch";
 
-const char kSchemeHttp[] = "http";
-const char kSchemeHttps[] = "https";
-
 struct MetricsEntry {
   MetricsNameIndex index;
   const char* const name;
 };
 
 // This entry table should be updated when new UMA items are added.
 const MetricsEntry kMetricsEntries[] = {
     {UMA_LANGUAGE_DETECTION, kRenderer4LanguageDetection},
     {UMA_CONTENT_LANGUAGE, kTranslateContentLanguage},
     {UMA_HTML_LANG, kTranslateHtmlLang},
@@ skipping 59 matching lines @@
       base::TimeDelta::FromMicroseconds(
           static_cast<int64>(time_in_msec * 1000.0)));
 }
 
 void ReportUserActionDuration(base::TimeTicks begin, base::TimeTicks end) {
   UMA_HISTOGRAM_LONG_TIMES(kTranslateUserActionDuration, end - begin);
 }
 
 void ReportPageScheme(const std::string& scheme) {
   SchemeType type = SCHEME_OTHERS;
-  if (scheme == kSchemeHttp)
+  if (scheme == url::kHttpScheme)
     type = SCHEME_HTTP;
-  else if (scheme == kSchemeHttps)
+  else if (scheme == url::kHttpsScheme)
     type = SCHEME_HTTPS;
   UMA_HISTOGRAM_ENUMERATION(kTranslatePageScheme, type, SCHEME_MAX);
 }
 
 void ReportLanguageDetectionTime(base::TimeTicks begin, base::TimeTicks end) {
   UMA_HISTOGRAM_MEDIUM_TIMES(kRenderer4LanguageDetection, end - begin);
 }
 
 void ReportSimilarLanguageMatch(bool match) {
   UMA_HISTOGRAM_BOOLEAN(kTranslateSimilarLanguageMatch, match);
 }
 
 const char* GetMetricsName(MetricsNameIndex index) {
   for (size_t i = 0; i < arraysize(kMetricsEntries); ++i) {
     if (kMetricsEntries[i].index == index)
       return kMetricsEntries[i].name;
   }
   NOTREACHED();
   return NULL;
 }
 
 }  // namespace translate