Hook up ProfileIOData's URLRequestContext to a NetworkService.

content/browser/webui/web_ui_url_loader_factory.cc

 // 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.
 
 #include "content/browser/webui/web_ui_url_loader_factory.h"
 
 #include <map>
 
 #include "base/bind.h"
 #include "base/lazy_instance.h"
@@ skipping 216 matching lines @@
   void CreateLoaderAndStart(mojom::URLLoaderAssociatedRequest loader,
                             int32_t routing_id,
                             int32_t request_id,
                             uint32_t options,
                             const ResourceRequest& request,
                             mojom::URLLoaderClientPtr client,
                             const net::MutableNetworkTrafficAnnotationTag&
                                 traffic_annotation) override {
     DCHECK_CURRENTLY_ON(BrowserThread::UI);
     if (request.url.host_piece() == kChromeUINetworkViewCacheHost) {
-      storage_partition_->network_context()->HandleViewCacheRequest(
+      storage_partition_->GetNetworkContext()->HandleViewCacheRequest(
           request.url, std::move(client));
       return;
     }
 
     if (request.url.host_piece() == kChromeUIBlobInternalsHost) {
       BrowserThread::PostTask(
           BrowserThread::IO, FROM_HERE,
           base::BindOnce(&StartBlobInternalsURLLoader, request,
                          client.PassInterface(),
                          base::Unretained(ChromeBlobStorageContext::GetFor(
@@ skipping 43 matching lines @@
 }  // namespace
 
 mojom::URLLoaderFactoryPtr CreateWebUIURLLoader(FrameTreeNode* node) {
   int ftn_id = node->frame_tree_node_id();
   if (g_factories.Get()[ftn_id].get() == nullptr)
     g_factories.Get()[ftn_id] = base::MakeUnique<WebUIURLLoaderFactory>(node);
   return g_factories.Get()[ftn_id]->CreateBinding();
 }
 
 }  // namespace content