service worker: Plumb NavigationPreloadManager.enable/disable to browser-side

third_party/WebKit/Source/modules/serviceworkers/NavigationPreloadCallbacks.cpp

 // Copyright 2016 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/serviceworkers/NavigationPreloadCallbacks.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "modules/serviceworkers/ServiceWorkerError.h"
 
@@ skipping 15 matching lines @@
 }
 
 void EnableNavigationPreloadCallbacks::onError(
     const WebServiceWorkerError& error) {
   if (!m_resolver->getExecutionContext() ||
       m_resolver->getExecutionContext()->activeDOMObjectsAreStopped())
     return;
   m_resolver->reject(ServiceWorkerError::take(m_resolver.get(), error));
 }
 
-DisableNavigationPreloadCallbacks::DisableNavigationPreloadCallbacks(
-    ScriptPromiseResolver* resolver)
-    : m_resolver(resolver) {
-  DCHECK(m_resolver);
-}
-
-DisableNavigationPreloadCallbacks::~DisableNavigationPreloadCallbacks() {}
-
-void DisableNavigationPreloadCallbacks::onSuccess() {
-  if (!m_resolver->getExecutionContext() ||
-      m_resolver->getExecutionContext()->activeDOMObjectsAreStopped())
-    return;
-  m_resolver->resolve();
-}
-
-void DisableNavigationPreloadCallbacks::onError(
-    const WebServiceWorkerError& error) {
-  if (!m_resolver->getExecutionContext() ||
-      m_resolver->getExecutionContext()->activeDOMObjectsAreStopped())
-    return;
-  m_resolver->reject(ServiceWorkerError::take(m_resolver.get(), error));
-}
-
 }  // namespace blink