WIP POC blob transport over mojo

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

Index: third_party/WebKit/Source/platform/blob/BlobRegistry.h
diff --git a/third_party/WebKit/Source/platform/blob/BlobRegistry.h b/third_party/WebKit/Source/platform/blob/BlobRegistry.h
index 0dbe101b54460c9e08d6347a1a0119e6f07667aa..a1cd1d073726947ff72341ced4d1d9c4b53179cc 100644
--- a/third_party/WebKit/Source/platform/blob/BlobRegistry.h
+++ b/third_party/WebKit/Source/platform/blob/BlobRegistry.h
@@ -37,6 +37,10 @@
 #include "platform/wtf/Forward.h"
 #include "platform/wtf/PassRefPtr.h"
 
+namespace base {
+class SingleThreadTaskRunner;
+}
+
 namespace blink {
 
 class BlobData;
@@ -50,6 +54,8 @@ class PLATFORM_EXPORT BlobRegistry {
   STATIC_ONLY(BlobRegistry);
 
  public:
+  static base::SingleThreadTaskRunner* GetIORunner();
+
   // Methods for controlling Blobs.
   static void RegisterBlobData(const String& uuid, std::unique_ptr<BlobData>);
   static void AddBlobDataRef(const String& uuid);