WIP POC blob transport over mojo

third_party/WebKit/Source/platform/blob/BlobRegistry.cpp

Index: third_party/WebKit/Source/platform/blob/BlobRegistry.cpp
diff --git a/third_party/WebKit/Source/platform/blob/BlobRegistry.cpp b/third_party/WebKit/Source/platform/blob/BlobRegistry.cpp
index a672b2bae41850b45cfa5c6bf5138dc143757557..48937004ff92ffe5f415dc04c9943a8f808ed378 100644
--- a/third_party/WebKit/Source/platform/blob/BlobRegistry.cpp
+++ b/third_party/WebKit/Source/platform/blob/BlobRegistry.cpp
@@ -89,6 +89,10 @@ static void RemoveFromOriginMap(const KURL& url) {
     OriginMap()->erase(url.GetString());
 }
 
+base::SingleThreadTaskRunner* BlobRegistry::GetIORunner() {
+  return GetBlobRegistry()->GetIORunner();
+}
+
 void BlobRegistry::RegisterBlobData(const String& uuid,
                                     std::unique_ptr<BlobData> data) {
   GetBlobRegistry()->RegisterBlobData(uuid, WebBlobData(std::move(data)));