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..169f23608ebd65e5700414b4c48547ddd4f6e55f 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
@@ -91,18 +91,18 @@ 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);