Introduce Platform::cacheMetadataInCacheStorage() to store V8 code cache in CacheStorage

third_party/WebKit/Source/core/fetch/ScriptResource.cpp

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller (mueller@kde.org)
     Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
@@ skipping 31 matching lines @@
     request.mutableResourceRequest().setRequestContext(WebURLRequest::RequestContextScript);
     ScriptResource* resource = toScriptResource(fetcher->requestResource(request, ScriptResourceFactory()));
     if (resource && !request.integrityMetadata().isEmpty())
         resource->setIntegrityMetadata(request.integrityMetadata());
     return resource;
 }
 
 ScriptResource::ScriptResource(const ResourceRequest& resourceRequest, const ResourceLoaderOptions& options, const String& charset)
     : TextResource(resourceRequest, Script, options, "application/javascript", charset)
     , m_integrityDisposition(ScriptIntegrityDisposition::NotChecked)
+    , m_v8CacheStrategiesForCacheStorage(V8CacheStrategiesForCacheStorageDefault)
 {
 }
 
 ScriptResource::~ScriptResource()
 {
 }
 
 void ScriptResource::didAddClient(ResourceClient* client)
 {
     ASSERT(ScriptResourceClient::isExpectedType(client));
@@ skipping 51 matching lines @@
     m_integrityDisposition = disposition;
 }
 bool ScriptResource::mustRefetchDueToIntegrityMetadata(const FetchRequest& request) const
 {
     if (request.integrityMetadata().isEmpty())
         return false;
 
     return !IntegrityMetadata::setsEqual(m_integrityMetadata, request.integrityMetadata());
 }
 
+bool ScriptResource::cacheMetadataSendToPlatformDisabled() const
+{
+    if (m_response.cacheStorageCacheName().isNull())
+        return false;
+    // Currently we don't support V8 code cache in CacheStorage by default.
+    return m_v8CacheStrategiesForCacheStorage == V8CacheStrategiesForCacheStorageNone || m_v8CacheStrategiesForCacheStorage == V8CacheStrategiesForCacheStorageDefault;
+}
+
+bool ScriptResource::shouldAggressivelyCacheMetadata() const
+{
+    return !m_response.cacheStorageCacheName().isNull() && m_v8CacheStrategiesForCacheStorage == V8CacheStrategiesForCacheStorageAggressive;
+}
+
 } // namespace blink