preamble_pattern   40 chrome/browser/extensions/api/web_request/form_data_parser.cc   const RE2 preamble_pattern;
preamble_pattern   55 chrome/browser/extensions/api/web_request/form_data_parser.cc       preamble_pattern(".+?"),
preamble_pattern  254 chrome/browser/extensions/api/web_request/form_data_parser.cc     return patterns_->preamble_pattern;
preamble_pattern  540 chrome/browser/extensions/api/web_request/form_data_parser.cc         if (!RE2::Consume(&source_, preamble_pattern())) {