Avoid object slicing in WebCredential::create

third_party/WebKit/Source/modules/credentialmanager/CredentialsContainer.cpp

 // 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.
 
 #include "modules/credentialmanager/CredentialsContainer.h"
 
 #include "bindings/core/v8/Dictionary.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
@@ skipping 152 matching lines @@
     return promise;
 }
 
 ScriptPromise CredentialsContainer::store(ScriptState* scriptState, Credential* credential)
 {
     ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
     if (!checkBoilerplate(resolver))
         return promise;
 
-    CredentialManagerClient::from(scriptState->getExecutionContext())->dispatchStore(WebCredential::create(credential->getPlatformCredential()), new NotificationCallbacks(resolver));
+    auto web_credential = WebCredential::create(credential->getPlatformCredential());
+    CredentialManagerClient::from(scriptState->getExecutionContext())->dispatchStore(*web_credential, new NotificationCallbacks(resolver));
     return promise;
 }
 
 ScriptPromise CredentialsContainer::requireUserMediation(ScriptState* scriptState)
 {
     ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
     if (!checkBoilerplate(resolver))
         return promise;
 
     CredentialManagerClient::from(scriptState->getExecutionContext())->dispatchRequireUserMediation(new NotificationCallbacks(resolver));
     return promise;
 }
 
 } // namespace blink