Revert 84000 - Autofill phone number enhancements and integration of Phone Number Util Library: p...

third_party/libphonenumber/cpp/src/phonenumberutil.h

Index: third_party/libphonenumber/cpp/src/phonenumberutil.h
===================================================================
--- third_party/libphonenumber/cpp/src/phonenumberutil.h	(revision 84008)
+++ third_party/libphonenumber/cpp/src/phonenumberutil.h	(working copy)
@@ -1,678 +0,0 @@
-// Copyright (C) 2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Utility for international phone numbers.
-//
-// Author: Shaopeng Jia
-// Open-sourced by: Philippe Liard
-
-#ifndef I18N_PHONENUMBERS_PHONENUMBERUTIL_H_
-#define I18N_PHONENUMBERS_PHONENUMBERUTIL_H_
-
-#include <list>
-#include <map>
-#include <set>
-#include <string>
-#include <utility>
-#include <vector>
-
-#include "base/scoped_ptr.h"
-#include "base/singleton.h"
-#include "phonenumber.pb.h"
-
-class TelephoneNumber;
-
-namespace i18n {
-namespace phonenumbers {
-
-using std::list;
-using std::map;
-using std::pair;
-using std::set;
-using std::string;
-using std::vector;
-
-using google::protobuf::RepeatedPtrField;
-
-class LoggerAdapter;
-class NumberFormat;
-class PhoneMetadata;
-class PhoneMetadataCollection;
-class PhoneNumber;
-
-class PhoneNumberUtil {
-  friend struct DefaultSingletonTraits<PhoneNumberUtil>;
-  friend class PhoneNumberUtilTest;
- public:
-  // INTERNATIONAL and NATIONAL formats are consistent with the definition
-  // in ITU-T Recommendation E. 123. For example, the number of the Google
-  // Zürich office will be written as "+41 44 668 1800" in INTERNATIONAL
-  // format, and as "044 668 1800" in NATIONAL format. E164 format is as per
-  // INTERNATIONAL format but with no formatting applied e.g. +41446681800.
-  // RFC3966 is as per INTERNATIONAL format, but with all spaces and other
-  // separating symbols replaced with a hyphen, and with any phone number
-  // extension appended with ";ext=".
-  enum PhoneNumberFormat {
-    E164,
-    INTERNATIONAL,
-    NATIONAL,
-    RFC3966
-  };
-
-  // Type of phone numbers.
-  enum PhoneNumberType {
-    FIXED_LINE,
-    MOBILE,
-    // In some regions (e.g. the USA), it is impossible to distinguish between
-    // fixed-line and mobile numbers by looking at the phone number itself.
-    FIXED_LINE_OR_MOBILE,
-    // Freephone lines
-    TOLL_FREE,
-    PREMIUM_RATE,
-    // The cost of this call is shared between the caller and the recipient, and
-    // is hence typically less than PREMIUM_RATE calls. See
-    // http://en.wikipedia.org/wiki/Shared_Cost_Service for more information.
-    SHARED_COST,
-    // Voice over IP numbers. This includes TSoIP (Telephony Service over IP).
-    VOIP,
-    // A personal number is associated with a particular person, and may be
-    // routed to either a MOBILE or FIXED_LINE number. Some more information can
-    // be found here: http://en.wikipedia.org/wiki/Personal_Numbers
-    PERSONAL_NUMBER,
-    PAGER,
-    // Used for "Universal Access Numbers" or "Company Numbers". They may be
-    // further routed to specific offices, but allow one number to be used for a
-    // company.
-    UAN,
-    // A phone number is of type UNKNOWN when it does not fit any of the known
-    // patterns for a specific region.
-    UNKNOWN
-  };
-
-  // Types of phone number matches. See detailed description beside the
-  // IsNumberMatch() method.
-  enum MatchType {
-    INVALID_NUMBER,  // NOT_A_NUMBER in the java version.
-    NO_MATCH,
-    SHORT_NSN_MATCH,
-    NSN_MATCH,
-    EXACT_MATCH,
-  };
-
-  enum ErrorType {
-    NO_PARSING_ERROR,
-    INVALID_COUNTRY_CODE_ERROR,  // INVALID_COUNTRY_CODE in the java version.
-    NOT_A_NUMBER,
-    TOO_SHORT_AFTER_IDD,
-    TOO_SHORT_NSN,
-    TOO_LONG_NSN,  // TOO_LONG in the java version.
-  };
-
-  // Possible outcomes when testing if a PhoneNumber is possible.
-  enum ValidationResult {
-    IS_POSSIBLE,
-    INVALID_COUNTRY_CODE,
-    TOO_SHORT,
-    TOO_LONG,
-  };
-
-  // Gets a PhoneNumberUtil instance to carry out international phone number
-  // formatting, parsing, or validation. The instance is loaded with phone
-  // number metadata for a number of most commonly used regions, as specified by
-  // DEFAULT_REGIONS_.
-  //
-  // The PhoneNumberUtil is implemented as a singleton. Therefore, calling
-  // getInstance multiple times will only result in one instance being created.
-  static PhoneNumberUtil* GetInstance();
-
-  // Returns true if the number is a valid vanity (alpha) number such as 800
-  // MICROSOFT. A valid vanity number will start with at least 3 digits and will
-  // have three or more alpha characters. This does not do region-specific
-  // checks - to work out if this number is actually valid for a region, it
-  // should be parsed and methods such as IsPossibleNumberWithReason or
-  // IsValidNumber should be used.
-  bool IsAlphaNumber(const string& number) const;
-
-  // Converts all alpha characters in a number to their respective digits on
-  // a keypad, but retains existing formatting.
-  void ConvertAlphaCharactersInNumber(string* number) const;
-
-  // Normalizes a string of characters representing a phone number. This
-  // converts wide-ascii and arabic-indic numerals to European numerals, and
-  // strips punctuation and alpha characters.
-  static void NormalizeDigitsOnly(string* number);
-
-  // Gets the national significant number of a phone number. Note a national
-  // significant number doesn't contain a national prefix or any formatting.
-  void GetNationalSignificantNumber(const PhoneNumber& number,
-                                    string* national_significant_num) const;
-
-  // Gets the length of the geographical area code from the PhoneNumber object
-  // passed in, so that clients could use it to split a national significant
-  // number into geographical area code and subscriber number. It works in such
-  // a way that the resultant subscriber number should be diallable, at least on
-  // some devices. An example of how this could be used:
-  //
-  // const PhoneNumberUtil& phone_util(PhoneNumberUtil::GetInstance());
-  // PhoneNumber number;
-  // phone_util.Parse("16502530000", "US", &number);
-  // string national_significant_number;
-  // phone_util.GetNationalSignificantNumber(number,
-  //                                         &national_significant_number);
-  // string area_code;
-  // string subscriber_number;
-  //
-  // int area_code_length = phone_util.GetLengthOfGeographicalAreaCode(number);
-  // if (area_code_length > 0) {
-  //   area_code = national_significant_number.substring(0, area_code_length);
-  //   subscriber_number = national_significant_number.substring(
-  //       area_code_length, string::npos);
-  // else {
-  //   area_code = "";
-  //   subscriber_number = national_significant_number;
-  // }
-  //
-  // N.B.: area code is a very ambiguous concept, so the I18N team generally
-  // recommends against using it for most purposes, but recommends using the
-  // more general national_number instead. Read the following carefully before
-  // deciding to use this method:
-  //
-  //  - geographical area codes change over time, and this method honors those
-  //    changes; therefore, it doesn't guarantee the stability of the result it
-  //    produces.
-  //  - subscriber numbers may not be diallable from all devices (notably mobile
-  //    devices, which typically requires the full national_number to be dialled
-  //    in most regions).
-  //  - most non-geographical numbers have no area codes.
-  //  - some geographical numbers have no area codes.
-  int GetLengthOfGeographicalAreaCode(const PhoneNumber& number) const;
-
-  // Gets the length of the national destination code (NDC) from the PhoneNumber
-  // object passed in, so that clients could use it to split a national
-  // significant number into NDC and subscriber number. The NDC of a phone
-  // number is normally the first group of digit(s) right after the country
-  // calling code when the number is formatted in the international format, if
-  // there is a subscriber number part that follows. An example of how this
-  // could be used:
-  //
-  // const PhoneNumberUtil& phone_util(PhoneNumberUtil::GetInstance());
-  // PhoneNumber number;
-  // phone_util.Parse("16502530000", "US", &number);
-  // string national_significant_number;
-  // phone_util.GetNationalSignificantNumber(number,
-  //                                         &national_significant_number);
-  // string national_destination_code;
-  // string subscriber_number;
-  //
-  // int national_destination_code_length =
-  //     phone_util.GetLengthOfGeographicalAreaCode(number);
-  // if (national_destination_code_length > 0) {
-  //   national_destination_code = national_significant_number.substring(
-  //       0, national_destination_code_length);
-  //   subscriber_number = national_significant_number.substring(
-  //       national_destination_code_length, string::npos);
-  // else {
-  //   national_destination_code = "";
-  //   subscriber_number = national_significant_number;
-  // }
-  //
-  // Refer to the unittests to see the difference between this function and
-  // GetLengthOfGeographicalAreaCode().
-  int GetLengthOfNationalDestinationCode(const PhoneNumber& number) const;
-
-  // Formats a phone number in the specified format using default rules. Note
-  // that this does not promise to produce a phone number that the user can
-  // dial from where they are - although we do format in either NATIONAL or
-  // INTERNATIONAL format depending on what the client asks for, we do not
-  // currently support a more abbreviated format, such as for users in the
-  // same area who could potentially dial the number without area code.
-  void Format(const PhoneNumber& number,
-              PhoneNumberFormat number_format,
-              string* formatted_number) const;
-
-  // Formats a phone number in the specified format using client-defined
-  // formatting rules.
-  void FormatByPattern(
-      const PhoneNumber& number,
-      PhoneNumberFormat number_format,
-      const RepeatedPtrField<NumberFormat>& user_defined_formats,
-      string* formatted_number) const;
-
-  // Formats a phone number in national format for dialing using the carrier as
-  // specified in the carrier_code. The carrier_code will always be used
-  // regardless of whether the phone number already has a preferred domestic
-  // carrier code stored. If carrier_code contains an empty string, return the
-  // number in national format without any carrier code.
-  void FormatNationalNumberWithCarrierCode(const PhoneNumber& number,
-                                           const string& carrier_code,
-                                           string* formatted_number) const;
-
-  // Formats a phone number in national format for dialing using the carrier as
-  // specified in the preferred_domestic_carrier_code field of the PhoneNumber
-  // object passed in. If that is missing, use the fallback_carrier_code passed
-  // in instead. If there is no preferred_domestic_carrier_code, and the
-  // fallback_carrier_code contains an empty string, return the number in
-  // national format without any carrier code.
-  //
-  // Use FormatNationalNumberWithCarrierCode instead if the carrier code passed
-  // in should take precedence over the number's preferred_domestic_carrier_code
-  // when formatting.
-  void FormatNationalNumberWithPreferredCarrierCode(
-      const PhoneNumber& number,
-      const string& fallback_carrier_code,
-      string* formatted_number) const;
-
-  // Formats a phone number for out-of-country dialing purposes.
-  //
-  // Note this function takes care of the case for calling inside of NANPA
-  // and between Russia and Kazakhstan (who share the same country calling
-  // code). In those cases, no international prefix is used. For regions which
-  // have multiple international prefixes, the number in its INTERNATIONAL
-  // format will be returned instead.
-  void FormatOutOfCountryCallingNumber(
-      const PhoneNumber& number,
-      const string& calling_from,
-      string* formatted_number) const;
-
-  // Formats a phone number using the original phone number format that the
-  // number is parsed from. The original format is embedded in the
-  // country_code_source field of the PhoneNumber object passed in. If such
-  // information is missing, the number will be formatted into the NATIONAL
-  // format by default.
-  void FormatInOriginalFormat(const PhoneNumber& number,
-                              const string& region_calling_from,
-                              string* formatted_number) const;
-
-  // Formats a phone number for out-of-country dialing purposes.
-  //
-  // Note that in this version, if the number was entered originally using alpha
-  // characters and this version of the number is stored in raw_input, this
-  // representation of the number will be used rather than the digit
-  // representation. Grouping information, as specified by characters such as
-  // "-" and " ", will be retained.
-  //
-  // Caveats:
-  // 1) This will not produce good results if the country calling code is both
-  // present in the raw input _and_ is the start of the national number. This
-  // is not a problem in the regions which typically use alpha numbers.
-  // 2) This will also not produce good results if the raw input has any
-  // grouping information within the first three digits of the national number,
-  // and if the function needs to strip preceding digits/words in the raw input
-  // before these digits. Normally people group the first three digits together
-  // so this is not a huge problem - and will be fixed if it proves to be so.
-  void FormatOutOfCountryKeepingAlphaChars(
-      const PhoneNumber& number,
-      const string& calling_from,
-      string* formatted_number) const;
-
-  // Attempts to extract a valid number from a phone number that is too long to
-  // be valid, and resets the PhoneNumber object passed in to that valid
-  // version. If no valid number could be extracted, the PhoneNumber object
-  // passed in will not be modified. It returns true if a valid phone number can
-  // be successfully extracted.
-  bool TruncateTooLongNumber(PhoneNumber* number) const;
-
-  // Gets the type of a phone number.
-  PhoneNumberType GetNumberType(const PhoneNumber& number) const;
-
-  // Tests whether a phone number matches a valid pattern. Note this doesn't
-  // verify the number is actually in use, which is impossible to tell by just
-  // looking at a number itself.
-  bool IsValidNumber(const PhoneNumber& number) const;
-
-  // Tests whether a phone number is valid for a certain region. Note this
-  // doesn't verify the number is actually in use, which is impossible to tell
-  // by just looking at a number itself. If the country calling code is not the
-  // same as the country calling code for the region, this immediately exits
-  // with false.  After this, the specific number pattern rules for the region
-  // are examined.
-  // This is useful for determining for example whether a particular number is
-  // valid for Canada, rather than just a valid NANPA number.
-  //
-  // The region_code parameter is an ISO 3166-1 two-letter country code string.
-  bool IsValidNumberForRegion(
-      const PhoneNumber& number,
-      const string& region_code) const;
-
-  // Returns the region where a phone number is from. This could be used for
-  // geo-coding at the region level.
-  // The country/region is returned as an ISO 3166-1 two-letter country code
-  // string.
-  void GetRegionCodeForNumber(const PhoneNumber& number,
-                              string* region_code) const;
-
-  // Returns the country calling code for a specific region. For example,
-  // this would be 1 for the United States, and 64 for New Zealand.
-  //
-  // The region_code parameter is an ISO 3166-1 two-letter country code string.
-  int GetCountryCodeForRegion(const string& region_code) const;
-
-  // Returns the region code that matches the specific country code. Note that
-  // it is possible that several regions share the same country code (e.g. US
-  // and Canada), and in that case, only one of the regions (normally the one
-  // with the largest population) is returned.
-  //
-  // The region code is returned as an ISO 3166-1 two-letter country code
-  // string.
-  void GetRegionCodeForCountryCode(int country_code, string* region_code) const;
-
-  // Checks if this is a region under the North American Numbering Plan
-  // Administration (NANPA).
-  //
-  // The region_code parameter is an ISO 3166-1 two-letter country code string.
-  bool IsNANPACountry(const string& region_code) const;
-
-  // Checks whether a phone number is a possible number. It provides a more
-  // lenient check than IsValidNumber() in the following sense:
-  //   1. It only checks the length of phone numbers. In particular, it doesn't
-  //      check starting digits of the number.
-  //   2. It doesn't attempt to figure out the type of the number, but uses
-  //      general rules which applies to all types of phone numbers in a
-  //      region. Therefore, it is much faster than IsValidNumber().
-  //   3. For fixed line numbers, many regions have the concept of area code,
-  //      which together with subscriber number constitute the national
-  //      significant number. It is sometimes okay to dial the subscriber
-  //      number only when dialing in the same area. This function will return
-  //      true if the subscriber-number-only version is passed in. On the other
-  //      hand, because IsValidNumber() validates using information on both
-  //      starting digits (for fixed line numbers, that would most likely be
-  //      area codes) and length (obviously includes the length of area codes
-  //      for fixed line numbers), it will return false for the
-  //      subscriber-number-only version.
-  ValidationResult IsPossibleNumberWithReason(const PhoneNumber& number) const;
-
-  // Convenience wrapper around IsPossibleNumberWithReason. Instead of returning
-  // the reason for failure, this method returns a boolean value.
-  bool IsPossibleNumber(const PhoneNumber& number) const;
-
-  // Checks whether a phone number is a possible number given a number in the
-  // form of a string, and the country where the number could be dialed from.
-  // It provides a more lenient check than IsValidNumber(). See
-  // IsPossibleNumber(const PhoneNumber& number) for details.
-  //
-  // This method first parses the number, then invokes
-  // IsPossibleNumber(const PhoneNumber& number) with the resultant PhoneNumber
-  // object.
-  //
-  // region_dialing_from represents the region that we are expecting the number
-  // to be dialed from. Note this is different from the region where the number
-  // belongs. For example, the number +1 650 253 0000 is a number that belongs
-  // to US. When written in this form, it could be dialed from any region. When
-  // it is written as 00 1 650 253 0000, it could be dialed from any region
-  // which uses an international dialling prefix of 00. When it is written as
-  // 650 253 0000, it could only be dialed from within the US, and when written
-  // as 253 0000, it could only be dialed from within a smaller area in the US
-  // (Mountain View, CA, to be more specific).
-  //
-  // The country_dialing_from parameter is an ISO 3166-1 two-letter country code
-  // string.
-  bool IsPossibleNumberForString(
-      const string& number,
-      const string& country_dialing_from) const;
-
-  // Gets a valid fixed-line number for the specified region. Returns false if
-  // the region was unknown.
-  bool GetExampleNumber(const string& region_code,
-                        PhoneNumber* number) const;
-
-  // Gets a valid number of the specified type for the specified region.
-  // Returns false if the region was unknown or if no example number of that
-  // type could be found.
-  //
-  // The region_code parameter is an ISO 3166-1 two-letter country code string.
-  bool GetExampleNumberForType(const string& region_code,
-                               PhoneNumberType type,
-                               PhoneNumber* number) const;
-
-  // Parses a string and returns it in proto buffer format. This method will
-  // return an error like INVALID_COUNTRY_CODE if the number is not considered
-  // to be a possible number, and NO_PARSING_ERROR if it parsed correctly. Note
-  // that validation of whether the number is actually a valid number for a
-  // particular region is not performed. This can be done separately with
-  // IsValidNumber().
-  //
-  // default_region represents the country that we are expecting the number to
-  // be from. This is only used if the number being parsed is not written in
-  // international format. The country_code for the number in this case would be
-  // stored as that of the default country supplied. If the number is guaranteed
-  // to start with a '+' followed by the country calling code, then
-  // "ZZ" can be supplied.
-  //
-  // The default_country parameter is an ISO 3166-1 two-letter country code
-  // string.
-  ErrorType Parse(const string& number_to_parse,
-                  const string& default_country,
-                  PhoneNumber* number) const;
-  // Parses a string and returns it in proto buffer format. This method differs
-  // from Parse() in that it always populates the raw_input field of the
-  // protocol buffer with number_to_parse as well as the country_code_source
-  // field.
-  //
-  // The default_country parameter is an ISO 3166-1 two-letter country code
-  // string.
-  ErrorType ParseAndKeepRawInput(const string& number_to_parse,
-                                 const string& default_country,
-                                 PhoneNumber* number) const;
-
-  // Takes two phone numbers and compares them for equality.
-  //
-  // Returns EXACT_MATCH if the country calling code, NSN, presence of a leading
-  // zero for Italian numbers and any extension present are the same.
-  // Returns NSN_MATCH if either or both has no country calling code specified,
-  // and the NSNs and extensions are the same.
-  // Returns SHORT_NSN_MATCH if either or both has no country calling code
-  // specified, or the country calling code specified is the same, and one NSN
-  // could be a shorter version of the other number. This includes the case
-  // where one has an extension specified, and the other does not.
-  // Returns NO_MATCH otherwise.
-  // For example, the numbers +1 345 657 1234 and 657 1234 are a
-  // SHORT_NSN_MATCH. The numbers +1 345 657 1234 and 345 657 are a NO_MATCH.
-  MatchType IsNumberMatch(const PhoneNumber& first_number,
-                          const PhoneNumber& second_number) const;
-
-  // Takes two phone numbers as strings and compares them for equality. This
-  // is a convenience wrapper for IsNumberMatch(PhoneNumber firstNumber,
-  // PhoneNumber secondNumber). No default region is known.
-  // Returns INVALID_NUMBER if either number cannot be parsed into a phone
-  // number.
-  MatchType IsNumberMatchWithTwoStrings(const string& first_number,
-                                        const string& second_number) const;
-
-  // Takes two phone numbers and compares them for equality. This is a
-  // convenience wrapper for IsNumberMatch(PhoneNumber firstNumber,
-  // PhoneNumber secondNumber). No default region is known.
-  // Returns INVALID_NUMBER if second_number cannot be parsed into a phone
-  // number.
-  MatchType IsNumberMatchWithOneString(const PhoneNumber& first_number,
-                                       const string& second_number) const;
-
-  // Implement this 'interface' to override the way metadatas are fetched.
-  // Useful for testing injecting stable metadatas.
-  class MetadataProvider {
-   public:
-     virtual ~MetadataProvider() {}
-
-     // Returns a pair containing a pointer to the data and its size
-     virtual pair<const void*, unsigned> operator()() = 0;
-  };
-
-  // Override the default logging system. The provided adapter destruction is
-  // handled by this class (don't delete it).
-  static void SetLoggerAdapter(LoggerAdapter* logger_adapter);
-
-  friend bool ConvertFromTelephoneNumberProto(
-      const TelephoneNumber& proto_to_convert,
-      PhoneNumber* new_proto);
-  friend bool ConvertToTelephoneNumberProto(const PhoneNumber& proto_to_convert,
-                                            TelephoneNumber* resulting_proto);
-
- protected:
-  // Check whether the country_calling_code is from a country whose national
-  // significant number could contain a leading zero. An example of such a
-  // country is Italy.
-  bool IsLeadingZeroPossible(int country_calling_code) const;
-
- private:
-  typedef pair<int, list<string>*> IntRegionsPair;
-
-  // The minimum and maximum length of the national significant number.
-  static const size_t kMinLengthForNsn = 3;
-  static const size_t kMaxLengthForNsn = 15;
-
-  // A mapping from a country calling code to a region code which denotes the
-  // region represented by that country calling code. Note countries under
-  // NANPA share the country calling code 1 and Russia and Kazakhstan share the
-  // country calling code 7. Under this map, 1 is mapped to region code "US" and
-  // 7 is mapped to region code "RU". This is implemented as a sorted vector to
-  // achieve better performance.
-  //
-  // Region codes are ISO 3166-1 two-letter country code strings.
-  scoped_ptr<vector<IntRegionsPair> > country_calling_code_to_region_code_map_;
-
-  struct CompareFirst {
-    bool operator()(const IntRegionsPair& p1,
-                    const IntRegionsPair& p2) const {
-      return p1.first < p2.first;
-    }
-  };
-
-  // The set of regions that share country calling code 1.
-  scoped_ptr<set<string> > nanpa_regions_;
-  static const int kNanpaCountryCode = 1;
-
-  // A mapping from a region code to a PhoneMetadata for that region.
-  // Region codes are ISO 3166-1 two-letter country code strings.
-  scoped_ptr<map<string, PhoneMetadata> > region_to_metadata_map_;
-
-  bool LoadMetadata(PhoneMetadataCollection* metadata,
-                    MetadataProvider& provider);
-
-  explicit PhoneNumberUtil(MetadataProvider* provider = 0);
-  ~PhoneNumberUtil();
-
-  // Gets all the supported regions.
-  void GetSupportedRegions(set<string>* regions) const;
-
-  // Returns the national dialling prefix for a specific region. For example,
-  // this would be 1 for the United States, and 0 for New Zealand. Set
-  // stripNonDigits to true to strip symbols like "~" (which indicates a wait
-  // for a dialling tone) from the prefix returned. If no national prefix is
-  // present, we return an empty string.
-  //
-  // Set strip_non_digits to true to strip non-digits from the national
-  // dialling prefix.
-  void GetNddPrefixForRegion(const string& region_code,
-                             bool strip_non_digits,
-                             string* national_prefix) const;
-
-  // Helper function to check region code is not unknown or null.
-  //
-  // The region_code parameter is an ISO 3166-1 two-letter country code string.
-  bool IsValidRegionCode(const string& region_code) const;
-
-  // Helper function to check region code is not unknown. The
-  // country_calling_code and number supplied is used only for the resultant log
-  // message.
-  //
-  // The region_code parameter is an ISO 3166-1 two-letter country code string.
-  bool HasValidRegionCode(const string& region_code,
-                          int country_code,
-                          const string& number) const;
-
-  // The region_code parameter is an ISO 3166-1 two-letter country code string.
-  const i18n::phonenumbers::PhoneMetadata* GetMetadataForRegion(
-      const string& region_code) const;
-
-  void GetRegionCodesForCountryCallingCode(
-      int country_calling_code,
-      list<string>* region_codes) const;
-
-  // Simple wrapper of FormatNationalNumberWithCarrier for the common case of
-  // no carrier code.
-  //
-  // The region_code parameter is an ISO 3166-1 two-letter country code string.
-  void FormatNationalNumber(const string& number,
-                            const string& region_code,
-                            PhoneNumberFormat number_format,
-                            string* formatted_number) const;
-
-  // The region_code parameter is an ISO 3166-1 two-letter country code string.
-  void FormatNationalNumberWithCarrier(const string& number,
-                                       const string& region_code,
-                                       PhoneNumberFormat number_format,
-                                       const string& carrier_code,
-                                       string* formatted_number) const;
-
-  // The region_code parameter is an ISO 3166-1 two-letter country code string.
-  void MaybeGetFormattedExtension(
-      const PhoneNumber& number,
-      const string& region_code,
-      PhoneNumberFormat number_format,
-      string* extension) const;
-
-  // The region_code parameter is an ISO 3166-1 two-letter country code string.
-  void FormatExtension(const string& extension_digits,
-                       const string& region_code,
-                       string* extension) const;
-
-  void GetRegionCodeForNumberFromRegionList(
-      const PhoneNumber& number,
-      const list<string>& region_codes,
-      string* region_code) const;
-
-  void Normalize(string* number) const;
-  PhoneNumber::CountryCodeSource MaybeStripInternationalPrefixAndNormalize(
-      const string& possible_idd_prefix,
-      string* number) const;
-
-  static void MaybeStripNationalPrefixAndCarrierCode(
-      const PhoneMetadata& metadata,
-      string* number,
-      string* carrier_code);
-
-  static void ExtractPossibleNumber(const string& number,
-                                    string* extracted_number);
-
-  static bool IsViablePhoneNumber(const string& number);
-
-  static bool MaybeStripExtension(string* number, string* extension);
-
-  int ExtractCountryCode(string* national_number) const;
-  ErrorType MaybeExtractCountryCode(
-      const PhoneMetadata* default_region_metadata,
-      bool keepRawInput,
-      string* national_number,
-      PhoneNumber* phone_number) const;
-
-  // The default_region parameter is an ISO 3166-1 two-letter country code
-  // string.
-  bool CheckRegionForParsing(
-      const string& number_to_parse,
-      const string& default_region) const;
-
-  // The default_region parameter is an ISO 3166-1 two-letter country code
-  // string.
-  ErrorType ParseHelper(const string& number_to_parse,
-                        const string& default_region,
-                        bool keep_raw_input,
-                        bool check_region,
-                        PhoneNumber* phone_number) const;
-
-  DISALLOW_COPY_AND_ASSIGN(PhoneNumberUtil);
-};
-
-}  // namespace phonenumbers
-}  // namespace i18n
-
-#endif  // I18N_PHONENUMBERS_PHONENUMBERUTIL_H_