Removed webControllerDidSuppressDialog: callback.

ios/web/public/test/fakes/test_web_state_observer.h

Index: ios/web/public/test/fakes/test_web_state_observer.h
diff --git a/ios/web/public/test/fakes/test_web_state_observer.h b/ios/web/public/test/fakes/test_web_state_observer.h
index 3176a56c166d58f9927ea5f34bf838374e0771c4..b4882b4ff040195c8dc8522be368be8e73ce69e7 100644
--- a/ios/web/public/test/fakes/test_web_state_observer.h
+++ b/ios/web/public/test/fakes/test_web_state_observer.h
@@ -60,6 +60,10 @@ class TestWebStateObserver : public WebStateObserver {
   did_change_visible_security_state_info() {
     return did_change_visible_security_state_info_.get();
   }
+  // Arguments passed to |DidSuppressDialog|.
+  web::TestDidSuppressDialogInfo* did_suppress_dialog_info() {
+    return did_suppress_dialog_info_.get();
+  }
   // Arguments passed to |DocumentSubmitted|.
   web::TestSubmitDocumentInfo* submit_document_info() {
     return submit_document_info_.get();
@@ -102,6 +106,7 @@ class TestWebStateObserver : public WebStateObserver {
   void DidFinishNavigation(NavigationContext* context) override;
   void TitleWasSet() override;
   void DidChangeVisibleSecurityState() override;
+  void DidSuppressDialog() override;
   void DocumentSubmitted(const std::string& form_name,
                          bool user_initiated) override;
   void FormActivityRegistered(const std::string& form_name,
@@ -130,6 +135,7 @@ class TestWebStateObserver : public WebStateObserver {
   std::unique_ptr<web::TestTitleWasSetInfo> title_was_set_info_;
   std::unique_ptr<web::TestDidChangeVisibleSecurityStateInfo>
       did_change_visible_security_state_info_;
+  std::unique_ptr<web::TestDidSuppressDialogInfo> did_suppress_dialog_info_;
   std::unique_ptr<web::TestSubmitDocumentInfo> submit_document_info_;
   std::unique_ptr<web::TestFormActivityInfo> form_activity_info_;
   std::unique_ptr<web::TestUpdateFaviconUrlCandidatesInfo>