Skip foreign fetch when the skipServiceWorker flag is set on a request.

content/child/request_info.h

Index: content/child/request_info.h
diff --git a/content/child/request_info.h b/content/child/request_info.h
index a5e026f9709d95b179854e4020bf253531dee7e2..8b64807dbd84d83f8f56bc5072a2d5e29cbd1f79 100644
--- a/content/child/request_info.h
+++ b/content/child/request_info.h
@@ -88,8 +88,8 @@ struct CONTENT_EXPORT RequestInfo {
   // True if the request was user initiated.
   bool has_user_gesture;
 
-  // True if the request should not be handled by the ServiceWorker.
-  bool skip_service_worker;
+  // Indicates which types of ServiceWorkers should skip handling this request.
+  SkipServiceWorker skip_service_worker;
 
   // True if corresponding AppCache group should be resetted.
   bool should_reset_appcache;