Use GURLs in Physical Web data source

components/physical_web/data_source/physical_web_data_source_impl.cc

Index: components/physical_web/data_source/physical_web_data_source_impl.cc
diff --git a/components/physical_web/data_source/physical_web_data_source_impl.cc b/components/physical_web/data_source/physical_web_data_source_impl.cc
index c73f2c5386111ae7fbbdda9a43fa4df1b8fe5b1e..86b4c185a14c34328c6e4c36de6b023f0730e925 100644
--- a/components/physical_web/data_source/physical_web_data_source_impl.cc
+++ b/components/physical_web/data_source/physical_web_data_source_impl.cc
@@ -23,18 +23,18 @@ void PhysicalWebDataSourceImpl::UnregisterListener(
   observer_list_.RemoveObserver(physical_web_listener);
 }
 
-void PhysicalWebDataSourceImpl::NotifyOnFound(const std::string& url) {
+void PhysicalWebDataSourceImpl::NotifyOnFound(const GURL& url) {
   for (PhysicalWebListener& observer : observer_list_)
     observer.OnFound(url);
 }
 
-void PhysicalWebDataSourceImpl::NotifyOnLost(const std::string& url) {
+void PhysicalWebDataSourceImpl::NotifyOnLost(const GURL& url) {
   for (PhysicalWebListener& observer : observer_list_)
     observer.OnLost(url);
 }
 
 void PhysicalWebDataSourceImpl::NotifyOnDistanceChanged(
-    const std::string& url,
+    const GURL& url,
     double distance_estimate) {
   for (PhysicalWebListener& observer : observer_list_)
     observer.OnDistanceChanged(url, distance_estimate);