PlzNavigate: Make ServiceWorker work with PlzNavigate.

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 26102c32a27408ed64d90135eed90db237af1a52..4a4ecf021240c796e2fb5ff67da180eed939df1f 100644
--- a/content/browser/service_worker/service_worker_context_wrapper.h
+++ b/content/browser/service_worker/service_worker_context_wrapper.h
@@ -128,6 +128,10 @@ class CONTENT_EXPORT ServiceWorkerContextWrapper
       const std::string& key,
       const GetUserDataForAllRegistrationsCallback& callback);
 
+  // PlzNavigate:
+  void RegisterBrowserProviderHost(
+      scoped_ptr<ServiceWorkerProviderHost> provider_host);
+
   void StartServiceWorker(const GURL& pattern, const StatusCallback& callback);
   void UpdateRegistration(const GURL& pattern);
   void SimulateSkipWaiting(int64_t version_id);