Add support for reading blobs when using the network service.

content/browser/loader/navigation_url_loader_network_service.cc

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/loader/navigation_url_loader_network_service.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/memory/ptr_util.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 89 matching lines @@
   mojom::URLLoaderFactory* factory;
   if (url_loader_factory_ptr) {
     factory = url_loader_factory_ptr.get();
   } else {
     if (factory_from_ui.is_valid()) {
       url_loader_factory_ptr.Bind(std::move(factory_from_ui));
       factory = url_loader_factory_ptr.get();
     } 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();
       }
     }
   }
 
   factory->CreateLoaderAndStart(
       std::move(url_loader_request), 0 /* routing_id? */, 0 /* request_id? */,
       mojom::kURLLoadOptionSendSSLInfo, *resource_request,
       std::move(url_loader_client_to_pass));
@@ skipping 55 matching lines @@
   binding_.Bind(mojo::MakeRequest(&url_loader_client_ptr_to_pass));
 
   // Check if a web UI scheme wants to handle this request.
   mojom::URLLoaderFactoryPtrInfo factory_ptr_info;
 
   const auto& schemes = URLDataManagerBackend::GetWebUISchemes();
   if (std::find(schemes.begin(), schemes.end(), new_request->url.scheme()) !=
       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--;
 
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&PrepareNavigationStartOnIO,
                  base::Passed(std::move(new_request)), resource_context,
                  service_worker_navigation_handle
                      ? service_worker_navigation_handle->core()
@@ skipping 79 matching lines @@
     TRACE_EVENT_ASYNC_END2("navigation", "Navigation timeToResponseStarted",
                            this, "&NavigationURLLoaderNetworkService", this,
                            "success", false);
 
     delegate_->OnRequestFailed(completion_status.exists_in_cache,
                                completion_status.error_code);
   }
 }
 
 }  // namespace content