Repo created

TMessagesProj/jni/voip/webrtc/base/i18n/timezone.cc

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+// 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 "base/i18n/timezone.h"
+
+#include <memory>
+#include <string>
+
+#include "third_party/icu/source/common/unicode/unistr.h"
+#include "third_party/icu/source/i18n/unicode/timezone.h"
+
+namespace base {
+
+std::string CountryCodeForCurrentTimezone() {
+  std::unique_ptr<icu::TimeZone> zone(icu::TimeZone::createDefault());
+  icu::UnicodeString id;
+  // ICU returns '001' (world) for Etc/GMT. Preserve the old behavior
+  // only for Etc/GMT while returning an empty string for Etc/UTC and
+  // Etc/UCT because they're less likely to be chosen by mistake in UK in
+  // place of Europe/London (Briitish Time).
+  if (zone->getID(id) == UNICODE_STRING_SIMPLE("Etc/GMT"))
+    return "GB";
+  char region_code[4];
+  UErrorCode status = U_ZERO_ERROR;
+  int length = zone->getRegion(id, region_code, 4, status);
+  // Return an empty string if region_code is a 3-digit numeric code such
+  // as 001 (World) for Etc/UTC, Etc/UCT.
+  return (U_SUCCESS(status) && length == 2)
+             ? std::string(region_code, static_cast<size_t>(length))
+             : std::string();
+}
+
+}  // namespace base