[ios Mojo] Supporting code for define WebUI function.

ios/web/public/test/test_web_client.mm

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "ios/web/public/test/test_web_client.h"
 
 #include "base/logging.h"
+#include "ios/web/test/test_url_constants.h"
+#include "url/gurl.h"
 
 namespace web {
 
 TestWebClient::TestWebClient()
     : last_cert_error_code_(0), last_cert_error_overridable_(true) {}
 
 TestWebClient::~TestWebClient() {}
 
+void TestWebClient::AddAdditionalSchemes(
+    std::vector<url::SchemeWithType>* additional_standard_schemes) const {
+  url::SchemeWithType scheme = {kTestWebUIScheme, url::SCHEME_WITHOUT_PORT};
+  additional_standard_schemes->push_back(scheme);
+}
+
+bool TestWebClient::IsAppSpecificURL(const GURL& url) const {
+  return url.SchemeIs(kTestWebUIScheme);
+}
+
 NSString* TestWebClient::GetEarlyPageScript() const {
   return early_page_script_ ? early_page_script_.get() : @"";
 }
 
 void TestWebClient::SetEarlyPageScript(NSString* page_script) {
   early_page_script_.reset([page_script copy]);
 }
 
 void TestWebClient::AllowCertificateError(
     WebState* web_state,
     int cert_error,
     const net::SSLInfo& ssl_info,
     const GURL& request_url,
     bool overridable,
     const base::Callback<void(bool)>& callback) {
   last_cert_error_code_ = cert_error;
   last_cert_error_ssl_info_ = ssl_info;
   last_cert_error_request_url_ = request_url;
   last_cert_error_overridable_ = overridable;
 
   callback.Run(false);
 }
 
 }  // namespace web