[Async][WIP] Call FrameLoader::checkCompleted() asynchronously to avoid sync body.onload()

chrome/browser/extensions/extension_browsertest.cc

Index: chrome/browser/extensions/extension_browsertest.cc
diff --git a/chrome/browser/extensions/extension_browsertest.cc b/chrome/browser/extensions/extension_browsertest.cc
index ace18cd3c5d163a22bd734cf5daa15690fb3d91f..5f841d9c5dc1e7659719ff58e0a286de4deed7d6 100644
--- a/chrome/browser/extensions/extension_browsertest.cc
+++ b/chrome/browser/extensions/extension_browsertest.cc
@@ -587,7 +587,7 @@ void ExtensionBrowserTest::OpenWindow(content::WebContents* contents,
                                       content::WebContents** newtab_result) {
   content::WindowedNotificationObserver windowed_observer(
       content::NOTIFICATION_LOAD_STOP,
-      content::NotificationService::AllSources());
+      content::Source<content::NavigationController>(&contents->GetController()));
   ASSERT_TRUE(content::ExecuteScript(contents,
                                      "window.open('" + url.spec() + "');"));
 
@@ -618,7 +618,8 @@ void ExtensionBrowserTest::NavigateInRenderer(content::WebContents* contents,
   bool result = false;
   content::WindowedNotificationObserver windowed_observer(
       content::NOTIFICATION_LOAD_STOP,
-      content::NotificationService::AllSources());
+      content::Source<content::NavigationController>(&contents->GetController()));
+      //content::NotificationService::AllSources());
   ASSERT_TRUE(content::ExecuteScriptAndExtractBool(
       contents,
       "window.addEventListener('unload', function() {"