PlzNavigate: Make ServiceWorker work with PlzNavigate.

content/child/service_worker/service_worker_network_provider.h

Index: content/child/service_worker/service_worker_network_provider.h
diff --git a/content/child/service_worker/service_worker_network_provider.h b/content/child/service_worker/service_worker_network_provider.h
index ec1bdceca34fb20778b30459f41f8e7a1998512b..4cb059690d54d555b4b5266e76150fcbcee10084 100644
--- a/content/child/service_worker/service_worker_network_provider.h
+++ b/content/child/service_worker/service_worker_network_provider.h
@@ -37,6 +37,12 @@ class CONTENT_EXPORT ServiceWorkerNetworkProvider
   static ServiceWorkerNetworkProvider* FromDocumentState(
       base::SupportsUserData* document_state);
 
+  // PlzNavigate
+  // browser_provider_id is used for browser-initiated navigations.
+  // It is set to a negative value stating at -2 in the browser process.
+  ServiceWorkerNetworkProvider(int route_id,
+                               ServiceWorkerProviderType type,
+                               int browser_provider_id);
   ServiceWorkerNetworkProvider(int route_id, ServiceWorkerProviderType type);
   ~ServiceWorkerNetworkProvider() override;
 
@@ -51,7 +57,7 @@ class CONTENT_EXPORT ServiceWorkerNetworkProvider
   bool IsControlledByServiceWorker() const;
 
  private:
-  const int provider_id_;
+  int provider_id_;
   scoped_refptr<ServiceWorkerProviderContext> context_;
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerNetworkProvider);
 };