base: Move SplitStringUsingSubstr functions from string_util.h to string_split.h

base/string_util.cc

 // Copyright (c) 2010 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 "base/string_util.h"
 
 #include "build/build_config.h"
 
 #include <ctype.h>
 #include <errno.h>
@@ skipping 803 matching lines @@
   SplitStringT(str, s, false, r);
 }
 #endif
 
 void SplitStringDontTrim(const std::string& str,
                          char s,
                          std::vector<std::string>* r) {
   SplitStringT(str, s, false, r);
 }
 
-template <typename STR>
-static void SplitStringUsingSubstrT(const STR& str,
-                                    const STR& s,
-                                    std::vector<STR>* r) {
-  typename STR::size_type begin_index = 0;
-  while (true) {
-    const typename STR::size_type end_index = str.find(s, begin_index);
-    if (end_index == STR::npos) {
-      const STR term = str.substr(begin_index);
-      STR tmp;
-      TrimWhitespace(term, TRIM_ALL, &tmp);
-      r->push_back(tmp);
-      return;
-    }
-    const STR term = str.substr(begin_index, end_index - begin_index);
-    STR tmp;
-    TrimWhitespace(term, TRIM_ALL, &tmp);
-    r->push_back(tmp);
-    begin_index = end_index + s.size();
-  }
-}
-
-void SplitStringUsingSubstr(const string16& str,
-                            const string16& s,
-                            std::vector<string16>* r) {
-  SplitStringUsingSubstrT(str, s, r);
-}
-
-void SplitStringUsingSubstr(const std::string& str,
-                            const std::string& s,
-                            std::vector<std::string>* r) {
-  SplitStringUsingSubstrT(str, s, r);
-}
-
 template<typename STR>
 static size_t TokenizeT(const STR& str,
                         const STR& delimiters,
                         std::vector<STR>* tokens) {
   tokens->clear();
 
   typename STR::size_type start = str.find_first_not_of(delimiters);
   while (start != STR::npos) {
     typename STR::size_type end = str.find_first_of(delimiters, start + 1);
     if (end == STR::npos) {
@@ skipping 377 matching lines @@
       int rstr_len = (max_len - 3) / 2;
       int lstr_len = rstr_len + ((max_len - 3) % 2);
       output->assign(input.substr(0, lstr_len) + L"..." +
                      input.substr(input.length() - rstr_len));
       break;
     }
   }
 
   return true;
 }