Add a stub implementation of the URLLoaderFactory for AppCache.

content/browser/url_loader_factory_getter.cc

Index: content/browser/url_loader_factory_getter.cc
diff --git a/content/browser/url_loader_factory_getter.cc b/content/browser/url_loader_factory_getter.cc
index be9038340184bd980f2be19d987daf5bcc2833f2..611cef7d8a05d2a61ca52840ec0632e01e3b0c40 100644
--- a/content/browser/url_loader_factory_getter.cc
+++ b/content/browser/url_loader_factory_getter.cc
@@ -5,17 +5,25 @@
 #include "content/browser/url_loader_factory_getter.h"
 
 #include "base/bind.h"
+#include "content/browser/appcache/appcache_url_loader_factory.h"
+#include "content/browser/storage_partition_impl.h"
+#include "content/common/network_service.mojom.h"
 
 namespace content {
 
 URLLoaderFactoryGetter::URLLoaderFactoryGetter() {}
 
-void URLLoaderFactoryGetter::Initialize(
-    mojom::URLLoaderFactoryPtr network_factory) {
+void URLLoaderFactoryGetter::Initialize(StoragePartitionImpl* partition) {
+  mojom::URLLoaderFactoryPtr network_factory;
+  partition->network_context()->CreateURLLoaderFactory(
+      MakeRequest(&network_factory), 0);
+
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::BindOnce(&URLLoaderFactoryGetter::InitializeOnIOThread, this,
-                     network_factory.PassInterface()));
+                     network_factory.PassInterface(),
+                     scoped_refptr<ChromeAppCacheService>(
+                         partition->GetAppCacheService())));
 }
 
 mojom::URLLoaderFactoryPtr* URLLoaderFactoryGetter::GetNetworkFactory() {
@@ -34,11 +42,20 @@ void URLLoaderFactoryGetter::SetNetworkFactoryForTesting(
                      this, test_factory.PassInterface()));
 }
 
+mojom::URLLoaderFactoryPtr* URLLoaderFactoryGetter::GetAppCacheFactory() {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  return &appcache_factory_;
+}
+
 URLLoaderFactoryGetter::~URLLoaderFactoryGetter() {}
 
 void URLLoaderFactoryGetter::InitializeOnIOThread(
-    mojom::URLLoaderFactoryPtrInfo network_factory) {
+    mojom::URLLoaderFactoryPtrInfo network_factory,
+    scoped_refptr<ChromeAppCacheService> appcache_service) {
   network_factory_.Bind(std::move(network_factory));
+
+  AppCacheURLLoaderFactory::CreateURLLoaderFactory(
+      mojo::MakeRequest(&appcache_factory_), appcache_service.get(), this);
 }
 
 void URLLoaderFactoryGetter::SetTestNetworkFactoryOnIOThread(