Move LanguageUsageMetrics and TranslateBrowserMetrics to components

components/language_usage_metrics/language_usage_metrics_unittest.cc

 // Copyright (c) 2011 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/language_usage_metrics.h"
+#include "components/language_usage_metrics/language_usage_metrics.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
+namespace language_usage_metrics {
+
 TEST(LanguageUsageMetricsTest, ParseAcceptLanguages) {
   std::set<int> language_set;
   std::set<int>::const_iterator it;
 
   const int ENGLISH = 25966;
   const int SPANISH = 25971;
   const int JAPANESE = 27233;
 
   // Basic single language case.
   LanguageUsageMetrics::ParseAcceptLanguages("ja", &language_set);
@@ skipping 75 matching lines @@
   EXPECT_EQ(JAPANESE, LanguageUsageMetrics::ToLanguageCode("ja-JP"));
 
   // Invalid locales are considered as unknown language.
   EXPECT_EQ(0, LanguageUsageMetrics::ToLanguageCode(std::string()));
   EXPECT_EQ(0, LanguageUsageMetrics::ToLanguageCode("1234"));
 
   // "xx" is not acceptable because it doesn't exist in ISO 639-1 table.
   // However, LanguageUsageMetrics doesn't tell what code is valid.
   EXPECT_EQ(30840, LanguageUsageMetrics::ToLanguageCode("xx"));
 }
+
+}  // namespace language_usage_metrics