Introduce ResourceRequesterInfo to abstract the requester of resource request

content/browser/loader/resource_requester_info.cc

+// 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 "content/browser/loader/resource_requester_info.h"
+
+#include "base/logging.h"
+#include "base/memory/ptr_util.h"
+#include "content/browser/appcache/chrome_appcache_service.h"
+#include "content/browser/blob_storage/chrome_blob_storage_context.h"
+#include "content/browser/loader/resource_message_filter.h"
+#include "content/browser/service_worker/service_worker_context_wrapper.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/resource_context.h"
+#include "storage/browser/fileapi/file_system_context.h"
+
+namespace content {
+
+ResourceRequesterInfo::ResourceRequesterInfo(
+    RequesterType type,
+    int child_id,
+    ChromeAppCacheService* appcache_service,
+    ChromeBlobStorageContext* blob_storage_context,
+    storage::FileSystemContext* file_system_context,
+    ServiceWorkerContextWrapper* service_worker_context,
+    const GetContextsCallback& get_contexts_callback)
+    : type_(type),
+      child_id_(child_id),
+      appcache_service_(appcache_service),
+      blob_storage_context_(blob_storage_context),
+      file_system_context_(file_system_context),
+      service_worker_context_(service_worker_context),
+      get_contexts_callback_(get_contexts_callback) {}
+
+ResourceRequesterInfo::~ResourceRequesterInfo() {}
+
+void ResourceRequesterInfo::set_filter(
+    base::WeakPtr<ResourceMessageFilter> filter) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  DCHECK_EQ(RequesterType::RENDERER, type_);
+  filter_ = filter;
+}
+
+void ResourceRequesterInfo::GetContexts(
+    ResourceType resource_type,
+    ResourceContext** resource_context,
+    net::URLRequestContext** request_context) const {
+  get_contexts_callback_.Run(resource_type, resource_context, request_context);
+}
+
+scoped_refptr<ResourceRequesterInfo> ResourceRequesterInfo::CreateForRenderer(
+    int child_id,
+    ChromeAppCacheService* appcache_service,
+    ChromeBlobStorageContext* blob_storage_context,
+    storage::FileSystemContext* file_system_context,
+    ServiceWorkerContextWrapper* service_worker_context,
+    const GetContextsCallback& get_contexts_callback) {
+  return scoped_refptr<ResourceRequesterInfo>(new ResourceRequesterInfo(
+      RequesterType::RENDERER, child_id, appcache_service, blob_storage_context,
+      file_system_context, service_worker_context, get_contexts_callback));
+}
+
+scoped_refptr<ResourceRequesterInfo>
+ResourceRequesterInfo::CreateForRendererTesting(int child_id) {
+  return scoped_refptr<ResourceRequesterInfo>(new ResourceRequesterInfo(
+      RequesterType::RENDERER, child_id, nullptr /* appcache_service */,
+      nullptr /* blob_storage_context */, nullptr /* file_system_context */,
+      nullptr /*service_worker_context */, GetContextsCallback()));
+}
+
+scoped_refptr<ResourceRequesterInfo>
+ResourceRequesterInfo::CreateForBrowserSideNavigation(
+    scoped_refptr<ServiceWorkerContextWrapper> service_worker_context) {
+  return scoped_refptr<ResourceRequesterInfo>(new ResourceRequesterInfo(
+      RequesterType::BROWSER_SIDE_NAVIGATION, -1,
+      nullptr /* appcache_service */, nullptr /* blob_storage_context */,
+      nullptr /* file_system_context */, service_worker_context.get(),
+      GetContextsCallback()));
+}
+
+scoped_refptr<ResourceRequesterInfo>
+ResourceRequesterInfo::CreateForDownloadOrPageSave(int child_id) {
+  return scoped_refptr<ResourceRequesterInfo>(new ResourceRequesterInfo(
+      RequesterType::DOWNLOAD_OR_PAGE_SAVE, child_id,
+      nullptr /* appcache_service */, nullptr /* blob_storage_context */,
+      nullptr /* file_system_context */, nullptr /*service_worker_context */,
+      GetContextsCallback()));
+}
+
+}  // namespace content