In components/autofill, move browser/ to core/browser/

components/autofill/browser/autofill_regexes.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 "components/autofill/browser/autofill_regexes.h"
-
-#include <map>
-#include <utility>
-
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/singleton.h"
-#include "base/stl_util.h"
-#include "base/strings/string16.h"
-#include "third_party/icu/public/i18n/unicode/regex.h"
-
-namespace {
-
-// A singleton class that serves as a cache of compiled regex patterns.
-class AutofillRegexes {
- public:
-  static AutofillRegexes* GetInstance();
-
-  // Returns the compiled regex matcher corresponding to |pattern|.
-  icu::RegexMatcher* GetMatcher(const base::string16& pattern);
-
- private:
-  AutofillRegexes();
-  ~AutofillRegexes();
-  friend struct DefaultSingletonTraits<AutofillRegexes>;
-
-  // Maps patterns to their corresponding regex matchers.
-  std::map<base::string16, icu::RegexMatcher*> matchers_;
-
-  DISALLOW_COPY_AND_ASSIGN(AutofillRegexes);
-};
-
-// static
-AutofillRegexes* AutofillRegexes::GetInstance() {
-  return Singleton<AutofillRegexes>::get();
-}
-
-AutofillRegexes::AutofillRegexes() {
-}
-
-AutofillRegexes::~AutofillRegexes() {
-  STLDeleteContainerPairSecondPointers(matchers_.begin(),
-                                       matchers_.end());
-}
-
-icu::RegexMatcher* AutofillRegexes::GetMatcher(const base::string16& pattern) {
-  if (!matchers_.count(pattern)) {
-    const icu::UnicodeString icu_pattern(pattern.data(), pattern.length());
-
-    UErrorCode status = U_ZERO_ERROR;
-    icu::RegexMatcher* matcher = new icu::RegexMatcher(icu_pattern,
-                                                       UREGEX_CASE_INSENSITIVE,
-                                                       status);
-    DCHECK(U_SUCCESS(status));
-
-    matchers_.insert(std::make_pair(pattern, matcher));
-  }
-
-  return matchers_[pattern];
-}
-
-}  // namespace
-
-namespace autofill {
-
-bool MatchesPattern(const base::string16& input,
-                    const base::string16& pattern) {
-  icu::RegexMatcher* matcher =
-      AutofillRegexes::GetInstance()->GetMatcher(pattern);
-  icu::UnicodeString icu_input(input.data(), input.length());
-  matcher->reset(icu_input);
-
-  UErrorCode status = U_ZERO_ERROR;
-  UBool match = matcher->find(0, status);
-  DCHECK(U_SUCCESS(status));
-  return !!match;
-}
-
-}  // namespace autofill