Implement the infrastructure of creating WorkerFetchContext in worker global scope.

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 84d8a5807adab482a4607ff93d436453da05b776..7fe964f5dd32c4d078dc7fe0be689639e5f6da74 100644
--- a/content/browser/service_worker/service_worker_context_wrapper.h
+++ b/content/browser/service_worker/service_worker_context_wrapper.h
@@ -16,6 +16,7 @@
 #include "base/memory/ref_counted.h"
 #include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/common/content_export.h"
+#include "content/common/worker_url_loader_factory_provider.mojom.h"
 #include "content/public/browser/service_worker_context.h"
 
 namespace base {
@@ -218,6 +219,14 @@ class CONTENT_EXPORT ServiceWorkerContextWrapper
   // Must be called from the IO thread.
   bool OriginHasForeignFetchRegistrations(const GURL& origin);
 
+  // Binds the ServiceWorkerWorkerClient of a dedicated (or shared) worker to
+  // the parent frame's ServiceWorkerProviderHost. (This is used only when
+  // off-main-thread-fetch is enabled.)
+  void BindWorkerFetchContext(
+      int render_process_id,
+      int service_worker_provider_id,
+      mojom::ServiceWorkerWorkerClientAssociatedPtrInfo client_ptr_info);
+
  private:
   friend class BackgroundSyncManagerTest;
   friend class base::RefCountedThreadSafe<ServiceWorkerContextWrapper>;