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 866edd6081d2537b27a48fff25c5e1f83ff4f039..20e02b7837c09bd1a20da594da6a0c9ca28cbc17 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;
 
@@ -49,7 +55,7 @@ class CONTENT_EXPORT ServiceWorkerNetworkProvider
   void SetServiceWorkerVersionId(int64 version_id);
 
  private:
-  const int provider_id_;
+  int provider_id_;
   scoped_refptr<ServiceWorkerProviderContext> context_;
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerNetworkProvider);
 };