Add support for reading blobs when using the network service.

content/browser/loader/navigation_url_loader_network_service.cc

Index: content/browser/loader/navigation_url_loader_network_service.cc
diff --git a/content/browser/loader/navigation_url_loader_network_service.cc b/content/browser/loader/navigation_url_loader_network_service.cc
index f32156a4074b47cda6e106d7ed12dbfde21c131b..411ccb506ea98c75120907f30c592293c0dd1736 100644
--- a/content/browser/loader/navigation_url_loader_network_service.cc
+++ b/content/browser/loader/navigation_url_loader_network_service.cc
@@ -107,6 +107,8 @@ void PrepareNavigationStartOnIO(
     } else {
       if (appcache_handle_core) {
         factory = url_loader_factory_getter->GetAppCacheFactory()->get();
+      } else if (resource_request->url.SchemeIs(url::kBlobScheme)) {
+        factory = url_loader_factory_getter->GetBlobFactory()->get();
       } else {
         factory = url_loader_factory_getter->GetNetworkFactory()->get();
       }
@@ -182,7 +184,7 @@ NavigationURLLoaderNetworkService::NavigationURLLoaderNetworkService(
       schemes.end()) {
     FrameTreeNode* frame_tree_node =
         FrameTreeNode::GloballyFindByID(request_info_->frame_tree_node_id);
-    factory_ptr_info = GetWebUIURLLoader(frame_tree_node).PassInterface();
+    factory_ptr_info = CreateWebUIURLLoader(frame_tree_node).PassInterface();
   }
 
   g_next_request_id--;