Add ref count to service workers for extension API.

chrome/browser/extensions/chrome_content_browser_client_extensions_part.cc

Index: chrome/browser/extensions/chrome_content_browser_client_extensions_part.cc
diff --git a/chrome/browser/extensions/chrome_content_browser_client_extensions_part.cc b/chrome/browser/extensions/chrome_content_browser_client_extensions_part.cc
index ca0879d192fed96008233ff83eb019cbf965ead5..438a7b2d7f08b38d36eeaa8bed683c8891e22fdf 100644
--- a/chrome/browser/extensions/chrome_content_browser_client_extensions_part.cc
+++ b/chrome/browser/extensions/chrome_content_browser_client_extensions_part.cc
@@ -29,6 +29,7 @@
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "content/public/browser/site_instance.h"
+#include "content/public/browser/storage_partition.h"
 #include "content/public/browser/vpn_service_proxy.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/content_switches.h"
@@ -553,7 +554,8 @@ void ChromeContentBrowserClientExtensionsPart::RenderProcessWillLaunch(
   host->AddFilter(new ExtensionsGuestViewMessageFilter(id, profile));
   if (extensions::ExtensionsClient::Get()
           ->ExtensionAPIEnabledInExtensionServiceWorkers()) {
-    host->AddFilter(new ExtensionServiceWorkerMessageFilter(id, profile));
+    host->AddFilter(new ExtensionServiceWorkerMessageFilter(
+        id, profile, host->GetStoragePartition()->GetServiceWorkerContext()));
   }
   extension_web_request_api_helpers::SendExtensionWebRequestStatusToHost(host);
 }