diff --git a/rtc_base/experiments/struct_parameters_parser.cc b/rtc_base/experiments/struct_parameters_parser.cc
new file mode 100644
index 0000000..cef9386
--- /dev/null
+++ b/rtc_base/experiments/struct_parameters_parser.cc
@@ -0,0 +1,67 @@
+/*
+ *  Copyright (c) 2019 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#include "rtc_base/experiments/struct_parameters_parser.h"
+
+#include <algorithm>
+
+#include "rtc_base/logging.h"
+#include "rtc_base/strings/string_builder.h"
+
+namespace webrtc {
+namespace struct_parser_impl {
+namespace {
+size_t FindOrEnd(absl::string_view str, size_t start, char delimiter) {
+  size_t pos = str.find(delimiter, start);
+  pos = (pos == std::string::npos) ? str.length() : pos;
+  return pos;
+}
+}  // namespace
+
+void ParseConfigParams(
+    absl::string_view config_str,
+    std::map<std::string, std::function<bool(absl::string_view)>> field_map) {
+  size_t i = 0;
+  while (i < config_str.length()) {
+    size_t val_end = FindOrEnd(config_str, i, ',');
+    size_t colon_pos = FindOrEnd(config_str, i, ':');
+    size_t key_end = std::min(val_end, colon_pos);
+    size_t val_begin = key_end + 1u;
+    std::string key(config_str.substr(i, key_end - i));
+    absl::string_view opt_value;
+    if (val_end >= val_begin)
+      opt_value = config_str.substr(val_begin, val_end - val_begin);
+    i = val_end + 1u;
+    auto field = field_map.find(key);
+    if (field != field_map.end()) {
+      if (!field->second(opt_value)) {
+        RTC_LOG(LS_WARNING) << "Failed to read field with key: '" << key
+                            << "' in trial: \"" << config_str << "\"";
+      }
+    } else {
+      RTC_LOG(LS_INFO) << "No field with key: '" << key
+                       << "' (found in trial: \"" << config_str << "\")";
+    }
+  }
+}
+
+std::string EncodeStringStringMap(std::map<std::string, std::string> mapping) {
+  rtc::StringBuilder sb;
+  bool first = true;
+  for (const auto& kv : mapping) {
+    if (!first)
+      sb << ",";
+    sb << kv.first << ":" << kv.second;
+    first = false;
+  }
+  return sb.Release();
+}
+}  // namespace struct_parser_impl
+
+}  // namespace webrtc