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diff --git a/third_party/libphonenumber/cpp/src/stringutil.h b/third_party/libphonenumber/cpp/src/stringutil.h
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-// Copyright (C) 2011 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.
-
-// Author: Philippe Liard
-
-#ifndef I18N_PHONENUMBERS_STRINGUTIL_H_
-#define I18N_PHONENUMBERS_STRINGUTIL_H_
-
-#include <cstddef>
-#include <string>
-
-#include "base/basictypes.h"
-
-namespace i18n {
-namespace phonenumbers {
-
-using std::string;
-
-// Supports string("hello") + 10.
-string operator+(const string& s, int n);
-
-// Converts integer to string.
-string SimpleItoa(uint64 n);
-string SimpleItoa(int n);
-
-// Replaces any occurrence of the character 'remove' (or the characters
-// in 'remove') with the character 'replacewith'.
-void StripString(string* s, const char* remove, char replacewith);
-
-// Returns true if 'in' starts with 'prefix' and writes 'in' minus 'prefix' into
-// 'out'.
-bool TryStripPrefixString(const string& in, const string& prefix, string* out);
-
-// Returns true if 's' ends with 'suffix'.
-bool HasSuffixString(const string& s, const string& suffix);
-
-// Converts string to int32.
-void safe_strto32(const string& s, int32 *n);
-
-// Converts string to uint64.
-void safe_strtou64(const string& s, uint64 *n);
-
-// Remove all occurrences of a given set of characters from a string.
-void strrmm(string* s, const string& chars);
-
-// Replaces all instances of 'substring' in 's' with 'replacement'. Returns the
-// number of instances replaced. Replacements are not subject to re-matching.
-int GlobalReplaceSubstring(const string& substring, const string& replacement,
- string* s);
-
-// Holds a reference to a std::string or C string. It can also be constructed
-// from an integer which is converted to a string.
-class StringHolder {
-public:
- // Don't make the constructors explicit to make the StrCat usage convenient.
- StringHolder(const string& s);
- StringHolder(const char* s);
- StringHolder(uint64 n);
- ~StringHolder();
-
- const string* GetString() const {
- return string_;
- }
-
- const char* GetCString() const {
- return cstring_;
- }
-
- size_t Length() const {
- return len_;
- }
-
-private:
- const string converted_string_; // Stores the string converted from integer.
- const string* const string_;
- const char* const cstring_;
- const size_t len_;
-};
-
-string& operator+=(string& lhs, const StringHolder& rhs);
-
-// Efficient string concatenation.
-
-string StrCat(const StringHolder& s1, const StringHolder& s2);
-
-string StrCat(const StringHolder& s1, const StringHolder& s2,
- const StringHolder& s3);
-
-string StrCat(const StringHolder& s1, const StringHolder& s2,
- const StringHolder& s3, const StringHolder& s4);
-
-string StrCat(const StringHolder& s1, const StringHolder& s2,
- const StringHolder& s3, const StringHolder& s4,
- const StringHolder& s5);
-
-string StrCat(const StringHolder& s1, const StringHolder& s2,
- const StringHolder& s3, const StringHolder& s4,
- const StringHolder& s5, const StringHolder& s6);
-
-string StrCat(const StringHolder& s1, const StringHolder& s2,
- const StringHolder& s3, const StringHolder& s4,
- const StringHolder& s5, const StringHolder& s6,
- const StringHolder& s7);
-
-string StrCat(const StringHolder& s1, const StringHolder& s2,
- const StringHolder& s3, const StringHolder& s4,
- const StringHolder& s5, const StringHolder& s6,
- const StringHolder& s7, const StringHolder& s8,
- const StringHolder& s9, const StringHolder& s10,
- const StringHolder& s11);
-
-void StrAppend(string* dest, const StringHolder& s1);
-
-void StrAppend(string* dest, const StringHolder& s1, const StringHolder& s2);
-
-} // namespace phonenumbers
-} // namespace i18n
-
-#endif // I18N_PHONENUMBERS_STRINGUTIL_H_