Revert 282408 "Use upstream libaddressinput in Chrome."

trunk/src/third_party/libaddressinput/chromium/string_compare.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 "third_party/libaddressinput/src/cpp/src/util/string_compare.h"
-
-#include "base/basictypes.h"
-#include "base/lazy_instance.h"
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "third_party/icu/source/i18n/unicode/coll.h"
-
-namespace i18n {
-namespace addressinput {
-
-namespace {
-
-class IcuStringComparer {
- public:
-  IcuStringComparer() {
-    UErrorCode error_code = U_ZERO_ERROR;
-    collator_.reset(
-        icu::Collator::createInstance(icu::Locale::getRoot(), error_code));
-    DCHECK(U_SUCCESS(error_code));
-    collator_->setStrength(icu::Collator::PRIMARY);
-  }
-
-  ~IcuStringComparer() {}
-
-  int Compare(const std::string& a, const std::string& b) const {
-    UErrorCode error_code = U_ZERO_ERROR;
-    int result = collator_->compareUTF8(a, b, error_code);
-    DCHECK(U_SUCCESS(error_code));
-    return result;
-  }
-
- private:
-  // ::scoped_ptr is from "base/memory/scoped_ptr.h", which does not interfere
-  // with ::i18n::addressinput::scoped_ptr from
-  // <libaddressinput/util/scoped_ptr.h>.
-  ::scoped_ptr<icu::Collator> collator_;
-
-  DISALLOW_COPY_AND_ASSIGN(IcuStringComparer);
-};
-
-static base::LazyInstance<IcuStringComparer> g_comparer =
-    LAZY_INSTANCE_INITIALIZER;
-
-}  // namespace
-
-// Dummy required for scoped_ptr<Impl>.
-class StringCompare::Impl {};
-
-StringCompare::StringCompare() {}
-
-StringCompare::~StringCompare() {}
-
-bool StringCompare::NaturalEquals(const std::string& a,
-                                  const std::string& b) const {
-  return g_comparer.Get().Compare(a, b) == 0;
-}
-
-bool StringCompare::NaturalLess(const std::string& a,
-                                const std::string& b) const {
-  return g_comparer.Get().Compare(a, b) < 0;
-}
-
-}  // namespace addressinput
-}  // namespace i18n