diff --git a/rtc_base/fake_mdns_responder.h b/rtc_base/fake_mdns_responder.h
index 1f87cf4b81..457f959f29 100644
--- a/rtc_base/fake_mdns_responder.h
+++ b/rtc_base/fake_mdns_responder.h
@@ -15,6 +15,7 @@
 #include <memory>
 #include <string>
 
+#include "absl/strings/string_view.h"
 #include "rtc_base/ip_address.h"
 #include "rtc_base/location.h"
 #include "rtc_base/mdns_responder_interface.h"
@@ -53,7 +54,7 @@ class FakeMdnsResponder : public MdnsResponderInterface {
     thread_->PostTask(ToQueuedTask([callback, result]() { callback(result); }));
   }
 
-  rtc::IPAddress GetMappedAddressForName(const std::string& name) const {
+  rtc::IPAddress GetMappedAddressForName(absl::string_view name) const {
     for (const auto& addr_name_pair : addr_name_map_) {
       if (addr_name_pair.second == name) {
         return addr_name_pair.first;
diff --git a/rtc_base/fake_network.h b/rtc_base/fake_network.h
index e2913a0d2f..cec2ffc75c 100644
--- a/rtc_base/fake_network.h
+++ b/rtc_base/fake_network.h
@@ -48,13 +48,13 @@ class FakeNetworkManager : public NetworkManagerBase,
     AddInterface(iface, "test" + rtc::ToString(next_index_++));
   }
 
-  void AddInterface(const SocketAddress& iface, const std::string& if_name) {
+  void AddInterface(const SocketAddress& iface, absl::string_view if_name) {
     AddInterface(iface, if_name, ADAPTER_TYPE_UNKNOWN);
   }
 
   void AddInterface(
       const SocketAddress& iface,
-      const std::string& if_name,
+      absl::string_view if_name,
       AdapterType type,
       absl::optional<AdapterType> underlying_vpn_adapter_type = absl::nullopt) {
     SocketAddress address(if_name, 0);