Add a stub implementation of the URLLoaderFactory for AppCache.

content/browser/storage_partition_impl.cc

Index: content/browser/storage_partition_impl.cc
diff --git a/content/browser/storage_partition_impl.cc b/content/browser/storage_partition_impl.cc
index c1d56e14f369ffcd2efdeab22dc3f1c689b979b3..c557745914c9d897816de92c6e2f3531d581c767 100644
--- a/content/browser/storage_partition_impl.cc
+++ b/content/browser/storage_partition_impl.cc
@@ -529,7 +529,7 @@ std::unique_ptr<StoragePartitionImpl> StoragePartitionImpl::Create(
     partition->network_context_->CreateURLLoaderFactory(
         MakeRequest(&network_factory), 0);
     partition->url_loader_factory_getter_->Initialize(
-        std::move(network_factory));
+        std::move(network_factory), partition->appcache_service_.get());

[jam, 2017/05/17 16:51:12]

We're going to need a bunch of stuff out of StoragePartitionImpl:
-network_context()
-GetAppCacheService()

And in future CLs, blob/filesystem and other getters out of it.

Can you make Initialize take a StoragePartitionImpl* and move these few lines
above inside of it? Then as we add more support to network service code path we
don't have to change this file or the Initialize() method

[ananta, 2017/05/17 18:14:09]

Done.

[ananta, 2017/05/17 18:14:09]

Done.

   }
 
   return partition;