Add ref count to service workers for extension API.

chrome/renderer/chrome_content_renderer_client.h

Index: chrome/renderer/chrome_content_renderer_client.h
diff --git a/chrome/renderer/chrome_content_renderer_client.h b/chrome/renderer/chrome_content_renderer_client.h
index f3665481e50f26da38ade7138dc756c5376f340f..c32efe22fda3d6bb631690d5f3b8685aa3eace8b 100644
--- a/chrome/renderer/chrome_content_renderer_client.h
+++ b/chrome/renderer/chrome_content_renderer_client.h
@@ -178,11 +178,11 @@ class ChromeContentRendererClient : public content::ContentRendererClient {
   void RunScriptsAtDocumentEnd(content::RenderFrame* render_frame) override;
   void DidInitializeServiceWorkerContextOnWorkerThread(
       v8::Local<v8::Context> context,
-      int embedded_worker_id,
+      int64_t service_worker_version_id,
       const GURL& url) override;
   void WillDestroyServiceWorkerContextOnWorkerThread(
       v8::Local<v8::Context> context,
-      int embedded_worker_id,
+      int64_t service_worker_version_id,
       const GURL& url) override;
   bool ShouldEnforceWebRTCRoutingPreferences() override;
   GURL OverrideFlashEmbedWithHTML(const GURL& url) override;