Function StringTrim

base/string/algorithm.h:222–225

std::string StringTrim(const StringPiece& str);
std::string StringTrim(const StringPiece& str, const StringPiece& trim_chars);
inline std::string StringTrim(const StringPiece& str, char trim_char)
{
    return StringTrim(str, StringPiece(&trim_char, 1));
}

/////////////////////////////////////////////////////////////////////////////
// Strip string inplace