Another performance improvement for phone library - at least +25% to previous cl (982ms for 100 i...

chrome/browser/autofill/phone_number_i18n.h

 // 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.
 
 #ifndef CHROME_BROWSER_AUTOFILL_PHONE_NUMBER_I18N_H_
 #define CHROME_BROWSER_AUTOFILL_PHONE_NUMBER_I18N_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/string16.h"
 
+namespace i18n {
+namespace phonenumbers {
+class PhoneNumber;
+}
+}
+
 // Utilities to process, normalize and compare international phone numbers.
-
 namespace autofill_i18n {
 
 // Most of the following functions require |locale| to operate. The |locale| is
 // a ISO 3166 standard code ("US" for USA, "CZ" for Czech Republic, etc.).
 
 // Normalizes phone number, by changing digits in the extended fonts
 // (such as \xFF1x) into '0'-'9'. Also strips out non-digit characters.
 string16 NormalizePhoneNumber(const string16& value,
                               const std::string& locale);
 
@@ skipping 54 matching lines @@
 
 // Compares two phones, normalizing them before comparision.
 PhoneMatch ComparePhones(const string16& phone1,
                          const string16& phone2,
                          const std::string& locale);
 
 bool PhoneNumbersMatch(const string16& number_a,
                        const string16& number_b,
                        const std::string& country_code);
 
+// The cached phone number, does parsing only once, improves performance.
+class PhoneObject {
+ public:
+  PhoneObject(const string16& number, const std::string& locale);
+  PhoneObject(const PhoneObject&);
+  PhoneObject();
+  ~PhoneObject();
+
+  string16 GetCountryCode() const;
+  string16 GetCityCode() const;
+  string16 GetNumber() const;
+  std::string GetLocale() const { return locale_; }
+
+  string16 GetWholeNumber() const;
+
+  PhoneMatch ComparePhones(const string16& phone) const;
+  PhoneMatch ComparePhones(const PhoneObject& phone) const;
+
+  PhoneObject& operator=(const PhoneObject& other);
+
+  bool ValidNumber() const { return i18n_number_ != NULL; }
+
+ private:
+  string16 city_code_;
+  string16 country_code_;
+  string16 number_;
+  mutable string16 whole_number_;  // Set on first request.
+  std::string locale_;
+  scoped_ptr<i18n::phonenumbers::PhoneNumber> i18n_number_;
+};
+
 }  // namespace autofill_i18n
 
 #endif  // CHROME_BROWSER_AUTOFILL_PHONE_NUMBER_I18N_H_