Add support for blob urls for subresources.

content/renderer/render_thread_impl.cc

 // Copyright (c) 2012 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/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <utility>
@@ skipping 1066 matching lines @@
           routing_id, make_scoped_refptr(new PendingFrameCreate(
                           browser_info, routing_id, std::move(frame_request),
                           std::move(frame_host_interface_broker)))));
   CHECK(result.second) << "Inserting a duplicate item.";
 }
 
 mojom::StoragePartitionService* RenderThreadImpl::GetStoragePartitionService() {
   return storage_partition_service_.get();
 }
 
+mojom::RendererHost* RenderThreadImpl::GetRendererHost() {
+  if (!renderer_host_.get()) {

[dcheng, 2017/06/06 23:05:46]

Nit: no .get(), here and below

[jam, 2017/06/07 03:32:41]

Done.

+    GetConnector()->BindInterface(mojom::kBrowserServiceName,
+                                  mojo::MakeRequest(&renderer_host_));
+  }
+  return renderer_host_.get();
+}
+
+mojom::URLLoaderFactory* RenderThreadImpl::GetBlobURLLoaderFactory() {
+  if (!blob_url_loader_factory_.get()) {
+    GetRendererHost()->GetBlobURLLoaderFactory(
+        mojo::MakeRequest(&blob_url_loader_factory_));
+  }
+  return blob_url_loader_factory_.get();
+}
+
 int RenderThreadImpl::GenerateRoutingID() {
   int32_t routing_id = MSG_ROUTING_NONE;
   render_message_filter()->GenerateRoutingID(&routing_id);
   return routing_id;
 }
 
 void RenderThreadImpl::AddFilter(IPC::MessageFilter* filter) {
   channel()->AddFilter(filter);
 }
 
@@ skipping 1400 matching lines @@
   }
 }
 
 void RenderThreadImpl::OnRendererInterfaceRequest(
     mojom::RendererAssociatedRequest request) {
   DCHECK(!renderer_binding_.is_bound());
   renderer_binding_.Bind(std::move(request));
 }
 
 }  // namespace content