[WIP] Introduce ScriptResourceData

third_party/WebKit/Source/core/loader/resource/ScriptResourceData.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.
+// Copyright 2017 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.
 
-    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
-    version 2 of the License, or (at your option) any later version.
+#include "core/loader/resource/ScriptResourceData.h"
 
-    This library is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-    Library General Public License for more details.
-
-    You should have received a copy of the GNU Library General Public License
-    along with this library; see the file COPYING.LIB.  If not, write to
-    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-    Boston, MA 02110-1301, USA.
-
-    This class provides all functionality needed for loading images, style
-    sheets and html pages from the web. It has a memory cache for these objects.
-*/
-
-#include "core/loader/resource/ScriptResource.h"
-
-#include "platform/SharedBuffer.h"
-#include "platform/instrumentation/tracing/web_memory_allocator_dump.h"
-#include "platform/instrumentation/tracing/web_process_memory_dump.h"
+#include "platform/HTTPNames.h"
 #include "platform/loader/fetch/CrossOriginAccessControl.h"
-#include "platform/loader/fetch/FetchParameters.h"
-#include "platform/loader/fetch/IntegrityMetadata.h"
-#include "platform/loader/fetch/ResourceClientWalker.h"
-#include "platform/loader/fetch/ResourceFetcher.h"
 #include "platform/network/mime/MIMETypeRegistry.h"
 
 namespace blink {
 
-ScriptResource* ScriptResource::Fetch(FetchParameters& params,
-                                      ResourceFetcher* fetcher) {
-  DCHECK_EQ(params.GetResourceRequest().GetFrameType(),
-            WebURLRequest::kFrameTypeNone);
-  params.SetRequestContext(WebURLRequest::kRequestContextScript);
-  ScriptResource* resource = ToScriptResource(
-      fetcher->RequestResource(params, ScriptResourceFactory()));
-  if (resource && !params.IntegrityMetadata().IsEmpty())
-    resource->SetIntegrityMetadata(params.IntegrityMetadata());
-  return resource;
-}
-
-ScriptResource::ScriptResource(const ResourceRequest& resource_request,
-                               const ResourceLoaderOptions& options,
-                               const String& charset)
-    : TextResource(resource_request,
-                   kScript,
-                   options,
-                   "application/javascript",
-                   charset) {}
-
-ScriptResource::~ScriptResource() {}
-
-void ScriptResource::DidAddClient(ResourceClient* client) {
-  DCHECK(ScriptResourceClient::IsExpectedType(client));
-  Resource::DidAddClient(client);
-}
-
-void ScriptResource::AppendData(const char* data, size_t length) {
-  Resource::AppendData(data, length);
-  ResourceClientWalker<ScriptResourceClient> walker(Clients());
-  while (ScriptResourceClient* client = walker.Next())
-    client->NotifyAppendData(this);
-}
-
-void ScriptResource::OnMemoryDump(WebMemoryDumpLevelOfDetail level_of_detail,
-                                  WebProcessMemoryDump* memory_dump) const {
-  Resource::OnMemoryDump(level_of_detail, memory_dump);
-  const String name = GetMemoryDumpName() + "/decoded_script";
-  auto dump = memory_dump->CreateMemoryAllocatorDump(name);
-  dump->AddScalar("size", "bytes", source_text_.CharactersSizeInBytes());
-  memory_dump->AddSuballocation(
-      dump->Guid(), String(WTF::Partitions::kAllocatedObjectPoolName));
-}
-
-const String& ScriptResource::SourceText() {
-  DCHECK(IsLoaded());
-
-  if (source_text_.IsNull() && Data()) {
-    String source_text = DecodedText();
-    ClearData();
-    SetDecodedSize(source_text.CharactersSizeInBytes());
-    source_text_ = AtomicString(source_text);
-  }
-
-  return source_text_;
-}
-
-void ScriptResource::DestroyDecodedDataForFailedRevalidation() {
-  source_text_ = AtomicString();
-}
-
 // static
-bool ScriptResource::MimeTypeAllowedByNosniff(
+bool ScriptResourceData::MimeTypeAllowedByNosniff(
     const ResourceResponse& response) {
   return ParseContentTypeOptionsHeader(
              response.HttpHeaderField(HTTPNames::X_Content_Type_Options)) !=
              kContentTypeOptionsNosniff ||
          MIMETypeRegistry::IsSupportedJavaScriptMIMEType(
              response.HttpContentType());
 }
 
-AccessControlStatus ScriptResource::CalculateAccessControlStatus(
+AccessControlStatus ScriptResourceData::CalculateAccessControlStatus(
     const SecurityOrigin* security_origin) const {
   if (GetResponse().WasFetchedViaServiceWorker()) {
     if (GetResponse().ServiceWorkerResponseType() ==
         kWebServiceWorkerResponseTypeOpaque) {
       return kOpaqueResource;
     }
 
     return kSharableCrossOrigin;
   }
 
   if (CrossOriginAccessControl::CheckAccess(
           GetResponse(), GetStoredCredentials(), security_origin) ==
       CrossOriginAccessControl::kAccessAllowed) {
     return kSharableCrossOrigin;
   }
 
   return kNotSharableCrossOrigin;
 }
 
 }  // namespace blink