Use GURLs in Physical Web data source

components/physical_web/data_source/fake_physical_web_data_source.cc

Index: components/physical_web/data_source/fake_physical_web_data_source.cc
diff --git a/components/physical_web/data_source/fake_physical_web_data_source.cc b/components/physical_web/data_source/fake_physical_web_data_source.cc
index adc64566cf97f142e07b420a7c28d97a6883472c..2419a6d02058eb527661372877b4c83c96ac565d 100644
--- a/components/physical_web/data_source/fake_physical_web_data_source.cc
+++ b/components/physical_web/data_source/fake_physical_web_data_source.cc
@@ -7,6 +7,7 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/values.h"
 #include "components/physical_web/data_source/physical_web_listener.h"
+#include "url/gurl.h"
 
 using base::ListValue;
 using base::DictionaryValue;
@@ -91,18 +92,18 @@ void FakePhysicalWebDataSource::SetMetadata(
   metadata_ = std::move(metadata);
 }
 
-void FakePhysicalWebDataSource::NotifyOnFound(const std::string& url) {
+void FakePhysicalWebDataSource::NotifyOnFound(const GURL& url) {
   for (PhysicalWebListener& observer : observer_list_)
     observer.OnFound(url);
 }
 
-void FakePhysicalWebDataSource::NotifyOnLost(const std::string& url) {
+void FakePhysicalWebDataSource::NotifyOnLost(const GURL& url) {
   for (PhysicalWebListener& observer : observer_list_)
     observer.OnLost(url);
 }
 
 void FakePhysicalWebDataSource::NotifyOnDistanceChanged(
-    const std::string& url,
+    const GURL& url,
     double distance_estimate) {
   for (PhysicalWebListener& observer : observer_list_)
     observer.OnDistanceChanged(url, distance_estimate);