[WIP] off-main-thread loading

content/renderer/render_frame_impl.h

Index: content/renderer/render_frame_impl.h
diff --git a/content/renderer/render_frame_impl.h b/content/renderer/render_frame_impl.h
index 4f338df19bd5f4e5ad6b6bdcf7677eff09883bfc..454c501f8fa18f4ddd01ebee0e83c7ed348b80c0 100644
--- a/content/renderer/render_frame_impl.h
+++ b/content/renderer/render_frame_impl.h
@@ -162,6 +162,7 @@ class ScreenOrientationDispatcher;
 class SharedWorkerRepository;
 class UserMediaClientImpl;
 struct CSPViolationParams;
+class WebWorkerFetchContextInfo;
 struct CommonNavigationParams;
 struct CustomContextMenuContext;
 struct FileChooserFileInfo;
@@ -677,6 +678,8 @@ class CONTENT_EXPORT RenderFrameImpl
       const blink::WebSecurityOrigin& security_origin,
       blink::WebSetSinkIdCallbacks* web_callbacks) override;
   blink::WebPageVisibilityState visibilityState() const override;
+  void propagateAuxiliaryFetchContext(
+      blink::WebWorkerFetchContextInfo*) const override;
 
   // WebFrameSerializerClient implementation:
   void didSerializeDataForFrame(