cleanup/Remove deprecated notification from extension_functional_browsertest.cc

chrome/browser/extensions/extension_functional_browsertest.cc

Index: chrome/browser/extensions/extension_functional_browsertest.cc
diff --git a/chrome/browser/extensions/extension_functional_browsertest.cc b/chrome/browser/extensions/extension_functional_browsertest.cc
index 6221e34f429aa9e3093fbfaf0be79eb1c30f506d..72e75a8bd3b372cf538a81c1cb4e21ac6cb20bc8 100644
--- a/chrome/browser/extensions/extension_functional_browsertest.cc
+++ b/chrome/browser/extensions/extension_functional_browsertest.cc
@@ -13,6 +13,7 @@
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/notification_types.h"
+#include "extensions/browser/test_extension_registry_observer.h"
 
 namespace extensions {
 
@@ -26,9 +27,7 @@ class ExtensionFunctionalTest : public ExtensionBrowserTest {
 
     base::FilePath path = test_data_dir_.AppendASCII(filename);
 
-    content::WindowedNotificationObserver extension_loaded_observer(
-        extensions::NOTIFICATION_EXTENSION_LOADED_DEPRECATED,
-        content::NotificationService::AllSources());
+    extensions::TestExtensionRegistryObserver extension_observer(registry);
 
     scoped_refptr<extensions::CrxInstaller> installer(
         extensions::CrxInstaller::CreateSilent(service));
@@ -48,7 +47,7 @@ class ExtensionFunctionalTest : public ExtensionBrowserTest {
     size_t num_after = registry->enabled_extensions().size();
     EXPECT_EQ(num_before + 1, num_after);
 
-    extension_loaded_observer.Wait();
+    extension_observer.WaitForExtensionLoaded();
     const Extension* extension =
         registry->enabled_extensions().GetByID(last_loaded_extension_id());
     EXPECT_TRUE(extension);