Removed Form Resubmission callback from CRWWebDelegate.

ios/web/public/test/fakes/test_web_state_delegate.mm

Index: ios/web/public/test/fakes/test_web_state_delegate.mm
diff --git a/ios/web/public/test/fakes/test_web_state_delegate.mm b/ios/web/public/test/fakes/test_web_state_delegate.mm
index 26683ef7a9899751503d81a630dc00ccbb20f48c..624d0deaaecef4ecd5d7b0f145726b78cf6aaf74 100644
--- a/ios/web/public/test/fakes/test_web_state_delegate.mm
+++ b/ios/web/public/test/fakes/test_web_state_delegate.mm
@@ -8,6 +8,13 @@
 
 namespace web {
 
+TestRepostFormRequest::TestRepostFormRequest() {}
+
+TestRepostFormRequest::~TestRepostFormRequest() = default;
+
+TestRepostFormRequest::TestRepostFormRequest(const TestRepostFormRequest&) =
+    default;
+
 TestAuthenticationRequest::TestAuthenticationRequest() {}
 
 TestAuthenticationRequest::~TestAuthenticationRequest() = default;
@@ -32,6 +39,14 @@ bool TestWebStateDelegate::HandleContextMenu(WebState*,
   return NO;
 }
 
+void TestWebStateDelegate::ShowRepostFormWarningDialog(
+    WebState* source,
+    const base::Callback<void(bool)>& callback) {
+  last_repost_form_request_ = base::MakeUnique<TestRepostFormRequest>();
+  last_repost_form_request_->web_state = source;
+  last_repost_form_request_->callback = callback;
+}
+
 TestJavaScriptDialogPresenter*
 TestWebStateDelegate::GetTestJavaScriptDialogPresenter() {
   return &java_script_dialog_presenter_;