base: Move StringSplitAlongWhitespace to string_split.h

base/string_split.h

 // 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.
 
 #ifndef BASE_STRING_SPLIT_H_
 #define BASE_STRING_SPLIT_H_
 #pragma once
 
 #include <string>
 #include <utility>
@@ skipping 51 matching lines @@
                          char16 c,
                          std::vector<string16>* r);
 // |str| should not be in a multi-byte encoding like Shift-JIS or GBK in which
 // the trailing byte of a multi-byte character can be in the ASCII range.
 // UTF-8, and other single/multi-byte ASCII-compatible encodings are OK.
 // Note: |c| must be in the ASCII range.
 void SplitStringDontTrim(const std::string& str,
                          char c,
                          std::vector<std::string>* r);
 
+// WARNING: this uses whitespace as defined by the HTML5 spec. If you need
+// a function similar to this but want to trim all types of whitespace, then
+// factor this out into a function that takes a string containing the characters
+// that are treated as whitespace.
+//
+// Splits the string along whitespace (where whitespace is the five space
+// characters defined by HTML 5). Each contiguous block of non-whitespace
+// characters is added to result.
+void SplitStringAlongWhitespace(const std::wstring& str,
+                                std::vector<std::wstring>* result);
+void SplitStringAlongWhitespace(const string16& str,
+                                std::vector<string16>* result);
+void SplitStringAlongWhitespace(const std::string& str,
+                                std::vector<std::string>* result);
+
 }  // namespace base
 
 #endif  // BASE_STRING_SPLIT_H