Add support for reading blobs when using the network service.

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 611cef7d8a05d2a61ca52840ec0632e01e3b0c40..9f16c054375759835270f822b7d0f9eda0b46520 100644
--- a/content/browser/url_loader_factory_getter.cc
+++ b/content/browser/url_loader_factory_getter.cc
@@ -18,10 +18,14 @@ void URLLoaderFactoryGetter::Initialize(StoragePartitionImpl* partition) {
   partition->network_context()->CreateURLLoaderFactory(
       MakeRequest(&network_factory), 0);
 
+  mojom::URLLoaderFactoryPtr blob_factory =
+      partition->GetBlobURLLoaderFactory()->CreateFactory();
+
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::BindOnce(&URLLoaderFactoryGetter::InitializeOnIOThread, this,
                      network_factory.PassInterface(),
+                     blob_factory.PassInterface(),
                      scoped_refptr<ChromeAppCacheService>(
                          partition->GetAppCacheService())));
 }
@@ -31,6 +35,11 @@ mojom::URLLoaderFactoryPtr* URLLoaderFactoryGetter::GetNetworkFactory() {
   return test_factory_.is_bound() ? &test_factory_ : &network_factory_;
 }
 
+mojom::URLLoaderFactoryPtr* URLLoaderFactoryGetter::GetBlobFactory() {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  return &blob_factory_;
+}
+
 void URLLoaderFactoryGetter::SetNetworkFactoryForTesting(
     mojom::URLLoaderFactoryPtr test_factory) {
   // Since the URLLoaderFactory pointers are bound on the IO thread, and this
@@ -51,8 +60,10 @@ URLLoaderFactoryGetter::~URLLoaderFactoryGetter() {}
 
 void URLLoaderFactoryGetter::InitializeOnIOThread(
     mojom::URLLoaderFactoryPtrInfo network_factory,
+    mojom::URLLoaderFactoryPtrInfo blob_factory,
     scoped_refptr<ChromeAppCacheService> appcache_service) {
   network_factory_.Bind(std::move(network_factory));
+  blob_factory_.Bind(std::move(blob_factory));
 
   AppCacheURLLoaderFactory::CreateURLLoaderFactory(
       mojo::MakeRequest(&appcache_factory_), appcache_service.get(), this);