Check page URL origin to determine JavaScript alert titles.

ios/chrome/browser/ui/dialogs/javascript_dialog_egtest.mm

Index: ios/chrome/browser/ui/dialogs/javascript_dialog_egtest.mm
diff --git a/ios/chrome/browser/ui/dialogs/javascript_dialog_egtest.mm b/ios/chrome/browser/ui/dialogs/javascript_dialog_egtest.mm
index 9d4f449c8b122d9b98ba99b3ad43a94b136333ef..a57d2427c0521678fa5e08eb4426f0a9c3caa2b0 100644
--- a/ios/chrome/browser/ui/dialogs/javascript_dialog_egtest.mm
+++ b/ios/chrome/browser/ui/dialogs/javascript_dialog_egtest.mm
@@ -201,10 +201,11 @@ void WaitForAlertToBeShown(NSString* alert_label) {
 }
 
 void WaitForJavaScripDialogToBeShown() {
-  NSString* alert_label = [DialogPresenter
-      localizedTitleForJavaScriptAlertFromPage:HttpServer::MakeUrl(
-                                                   kJavaScriptTestURL)];
-  WaitForAlertToBeShown(alert_label);
+  GURL javaScriptURL = HttpServer::MakeUrl(kJavaScriptTestURL);
+  NSString* alertLabel =
+      [DialogPresenter localizedTitleForJavaScriptAlertFromPage:javaScriptURL
+                                                   mainFrameURL:javaScriptURL];
+  WaitForAlertToBeShown(alertLabel);
 }
 
 // Injects JavaScript to show a dialog with |type|, verifying that it was
@@ -226,9 +227,10 @@ void ShowJavaScriptDialog(JavaScriptAlertType type) {
 void AssertJavaScriptAlertNotPresent() {
   ConditionBlock condition = ^{
     NSError* error = nil;
+    GURL javaScriptURL = HttpServer::MakeUrl(kJavaScriptTestURL);
     NSString* alertLabel = [DialogPresenter
-        localizedTitleForJavaScriptAlertFromPage:HttpServer::MakeUrl(
-                                                     kJavaScriptTestURL)];
+        localizedTitleForJavaScriptAlertFromPage:javaScriptURL
+                                    mainFrameURL:javaScriptURL];
     id<GREYMatcher> titleLabel =
         chrome_test_util::StaticTextWithAccessibilityLabel(alertLabel);
     [[EarlGrey selectElementWithMatcher:titleLabel] assertWithMatcher:grey_nil()
@@ -574,9 +576,10 @@ void TapSuppressDialogsButton() {
   }
 
   // Wait for the alert to be shown.
-  NSString* alertLabel = [DialogPresenter
-      localizedTitleForJavaScriptAlertFromPage:HttpServer::MakeUrl(
-                                                   kJavaScriptTestURL)];
+  GURL javaScriptURL = HttpServer::MakeUrl(kJavaScriptTestURL);
+  NSString* alertLabel =
+      [DialogPresenter localizedTitleForJavaScriptAlertFromPage:javaScriptURL
+                                                   mainFrameURL:javaScriptURL];
   WaitForAlertToBeShown(alertLabel);
 
   // Verify that the omnibox shows the correct URL when the dialog is visible.