Use GURLs in Physical Web data source

components/ntp_snippets/physical_web_pages/physical_web_page_suggestions_provider_unittest.cc

Index: components/ntp_snippets/physical_web_pages/physical_web_page_suggestions_provider_unittest.cc
diff --git a/components/ntp_snippets/physical_web_pages/physical_web_page_suggestions_provider_unittest.cc b/components/ntp_snippets/physical_web_pages/physical_web_page_suggestions_provider_unittest.cc
index 70d4cc97d19062ed4635db8450e245720d0d9ad7..e6d8be94e0a632092357f82acbdaff17ef68d826 100644
--- a/components/ntp_snippets/physical_web_pages/physical_web_page_suggestions_provider_unittest.cc
+++ b/components/ntp_snippets/physical_web_pages/physical_web_page_suggestions_provider_unittest.cc
@@ -95,15 +95,15 @@ class PhysicalWebPageSuggestionsProviderTest : public testing::Test {
         KnownCategories::PHYSICAL_WEB_PAGES);
   }
 
-  void FireUrlFound(const std::string& url) {
+  void FireUrlFound(const GURL& url) {
     physical_web_data_source_.NotifyOnFound(url);
   }
 
-  void FireUrlLost(const std::string& url) {
+  void FireUrlLost(const GURL& url) {
     physical_web_data_source_.NotifyOnLost(url);
   }
 
-  void FireUrlDistanceChanged(const std::string& url, double new_distance) {
+  void FireUrlDistanceChanged(const GURL& url, double new_distance) {
     physical_web_data_source_.NotifyOnDistanceChanged(url, new_distance);
   }