Add support for reading blobs when using the network service.

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 01dc70688f27b2b916a3fbd5694569667fabb006..dbea3089dcedd5db9aadf7a77f1ca91fa4c4a054 100644
--- a/content/browser/storage_partition_impl.cc
+++ b/content/browser/storage_partition_impl.cc
@@ -15,6 +15,7 @@
 #include "base/sequenced_task_runner.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/utf_string_conversions.h"
+#include "content/browser/blob_storage/chrome_blob_storage_context.h"
 #include "content/browser/browser_main_loop.h"
 #include "content/browser/browsing_data/storage_partition_http_cache_data_remover.h"
 #include "content/browser/fileapi/browser_file_system_helper.h"
@@ -40,6 +41,7 @@
 #include "net/url_request/url_request_context_getter.h"
 #include "ppapi/features/features.h"
 #include "services/service_manager/public/cpp/connector.h"
+#include "storage/browser/blob/blob_storage_context.h"
 #include "storage/browser/database/database_tracker.h"
 #include "storage/browser/quota/quota_manager.h"
 
@@ -230,6 +232,12 @@ void ClearSessionStorageOnUIThread(
                  callback));
 }
 
+base::WeakPtr<storage::BlobStorageContext> BlobStorageContextGetter(
+    scoped_refptr<ChromeBlobStorageContext> blob_context) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  return blob_context->context()->AsWeakPtr();
+}
+
 }  // namespace
 
 // Static.
@@ -529,6 +537,13 @@ std::unique_ptr<StoragePartitionImpl> StoragePartitionImpl::Create(
     network_service->CreateNetworkContext(
         MakeRequest(&partition->network_context_), std::move(context_params));
 
+    scoped_refptr<ChromeBlobStorageContext> blob_context =
+        ChromeBlobStorageContext::GetFor(context);
+    BlobURLLoaderFactory::BlobContextGetter blob_getter =
+        base::BindOnce(&BlobStorageContextGetter, blob_context);
+    partition->blob_url_loader_factory_ = new BlobURLLoaderFactory(
+        std::move(blob_getter), partition->filesystem_context_);
+
     partition->url_loader_factory_getter_ = new URLLoaderFactoryGetter();
     partition->url_loader_factory_getter_->Initialize(partition.get());
   }
@@ -623,6 +638,10 @@ StoragePartitionImpl::GetBluetoothAllowedDevicesMap() {
   return bluetooth_allowed_devices_map_.get();
 }
 
+BlobURLLoaderFactory* StoragePartitionImpl::GetBlobURLLoaderFactory() {
+  return blob_url_loader_factory_.get();
+}
+
 void StoragePartitionImpl::OpenLocalStorage(
     const url::Origin& origin,
     mojo::InterfaceRequest<mojom::LevelDBWrapper> request) {