[proof-of-concept] SW thread independent of the main thread

content/browser/service_worker/service_worker_context_wrapper.h

Index: content/browser/service_worker/service_worker_context_wrapper.h
diff --git a/content/browser/service_worker/service_worker_context_wrapper.h b/content/browser/service_worker/service_worker_context_wrapper.h
index 12c8b7220cd833464c774c76357a7bb6408573c5..33e0ea4fcfa81a76b6cf89265aa73affc64b4447 100644
--- a/content/browser/service_worker/service_worker_context_wrapper.h
+++ b/content/browser/service_worker/service_worker_context_wrapper.h
@@ -17,6 +17,8 @@
 #include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/service_worker_context.h"
+#include "net/url_request/url_request_context_getter_observer.h"
+#include "third_party/WebKit/public/platform/modules/serviceworker/service_worker.mojom.h"
 
 namespace base {
 class FilePath;
@@ -191,6 +193,10 @@ class CONTENT_EXPORT ServiceWorkerContextWrapper
   // Must be called from the UI thread.
   bool IsRunningNavigationHintTask(int render_process_id) const;
 
+  // Create a ServiceWorkerServiceImpl that is owned by this.
+  void CreateService(
+      mojo::InterfaceRequest<blink::mojom::ServiceWorkerService> request);
+
  private:
   friend class BackgroundSyncManagerTest;
   friend class base::RefCountedThreadSafe<ServiceWorkerContextWrapper>;