Mandate unique_ptr for base::IDMap in IDMapOwnPointer mode.

third_party/WebKit/Source/modules/push_messaging/PushSubscription.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/push_messaging/PushSubscription.h"
 
 #include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/V8ObjectBuilder.h"
 #include "modules/push_messaging/PushError.h"
@@ skipping 46 matching lines @@
 
 ScriptPromise PushSubscription::unsubscribe(ScriptState* scriptState) {
   ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
   ScriptPromise promise = resolver->promise();
 
   WebPushProvider* webPushProvider = Platform::current()->pushProvider();
   DCHECK(webPushProvider);
 
   webPushProvider->unsubscribe(
       m_serviceWorkerRegistration->webRegistration(),
-      new CallbackPromiseAdapter<bool, PushError>(resolver));
+      WTF::makeUnique<CallbackPromiseAdapter<bool, PushError>>(resolver));
   return promise;
 }
 
 ScriptValue PushSubscription::toJSONForBinding(ScriptState* scriptState) {
   DCHECK(m_p256dh);
 
   V8ObjectBuilder result(scriptState);
   result.addString("endpoint", endpoint());
 
   V8ObjectBuilder keys(scriptState);
   keys.add("p256dh",
            WTF::base64URLEncode(static_cast<const char*>(m_p256dh->data()),
                                 m_p256dh->byteLength()));
   keys.add("auth",
            WTF::base64URLEncode(static_cast<const char*>(m_auth->data()),
                                 m_auth->byteLength()));
   result.add("keys", keys);
 
   return result.scriptValue();
 }
 
 DEFINE_TRACE(PushSubscription) {
   visitor->trace(m_options);
   visitor->trace(m_p256dh);
   visitor->trace(m_auth);
   visitor->trace(m_serviceWorkerRegistration);
 }
 
 }  // namespace blink