152 bool ParseFieldTrialsString(const std::string& trials_string,  in ParseFieldTrialsString()  argument
154   const StringPiece trials_string_piece(trials_string);  in ParseFieldTrialsString()
157   while (next_item < trials_string.length()) {  in ParseFieldTrialsString()
158     size_t name_end = trials_string.find(kPersistentStringSeparator, next_item);  in ParseFieldTrialsString()
159     if (name_end == trials_string.npos || next_item == name_end)  in ParseFieldTrialsString()
162         trials_string.find(kPersistentStringSeparator, name_end + 1);  in ParseFieldTrialsString()
165     if (group_name_end == trials_string.npos)  in ParseFieldTrialsString()
166       group_name_end = trials_string.length();  in ParseFieldTrialsString()
170     if (trials_string[next_item] == kActivationMarker) {  in ParseFieldTrialsString()
740     const std::string& trials_string,  in GetActiveFieldTrialGroupsFromString()  argument
743   if (!ParseFieldTrialsString(trials_string, &entries))  in GetActiveFieldTrialGroupsFromString()
789     const std::string& trials_string,  in CreateTrialsFromString()  argument
792   if (trials_string.empty() || !global_)  in CreateTrialsFromString()
796   if (!ParseFieldTrialsString(trials_string, &entries))  in CreateTrialsFromString()