Nuke WebPassOwnPtr<T> and replace it with std::unique_ptr<T>.

third_party/WebKit/Source/modules/cachestorage/CacheStorage.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/cachestorage/CacheStorage.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
@@ skipping 73 matching lines @@
 };
 
 // FIXME: Consider using CallbackPromiseAdapter.
 class CacheStorage::WithCacheCallbacks final : public WebServiceWorkerCacheStorage::CacheStorageWithCacheCallbacks {
     WTF_MAKE_NONCOPYABLE(WithCacheCallbacks);
 public:
     WithCacheCallbacks(const String& cacheName, CacheStorage* cacheStorage, ScriptPromiseResolver* resolver)
         : m_cacheName(cacheName), m_cacheStorage(cacheStorage), m_resolver(resolver) { }
     ~WithCacheCallbacks() override { }
 
-    void onSuccess(WebPassOwnPtr<WebServiceWorkerCache> webCache) override
+    void onSuccess(std::unique_ptr<WebServiceWorkerCache> webCache) override
     {
         if (!m_resolver->getExecutionContext() || m_resolver->getExecutionContext()->activeDOMObjectsAreStopped())
             return;
-        Cache* cache = Cache::create(m_cacheStorage->m_scopedFetcher, webCache.release());
+        Cache* cache = Cache::create(m_cacheStorage->m_scopedFetcher, adoptPtr(webCache.release()));
         m_cacheStorage->m_nameToCacheMap.set(m_cacheName, cache);
         m_resolver->resolve(cache);
         m_resolver.clear();
     }
 
     void onError(WebServiceWorkerCacheError reason) override
     {
         if (!m_resolver->getExecutionContext() || m_resolver->getExecutionContext()->activeDOMObjectsAreStopped())
             return;
         if (reason == WebServiceWorkerCacheErrorNotFound)
@@ skipping 231 matching lines @@
     m_webCacheStorage.clear();
 }
 
 DEFINE_TRACE(CacheStorage)
 {
     visitor->trace(m_scopedFetcher);
     visitor->trace(m_nameToCacheMap);
 }
 
 } // namespace blink