Adds a basic offline check to InstallableManager.

content/browser/service_worker/service_worker_context_wrapper.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WRAPPER_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WRAPPER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 252 matching lines @@
       scoped_refptr<ServiceWorkerRegistration> registration);
 
   void DidDeleteAndStartOver(ServiceWorkerStatusCode status);
 
   void DidGetAllRegistrationsForGetAllOrigins(
       const GetUsageInfoCallback& callback,
       ServiceWorkerStatusCode status,
       const std::vector<ServiceWorkerRegistrationInfo>& registrations);
 
   void DidCheckHasServiceWorker(const CheckHasServiceWorkerCallback& callback,
-                                bool has_service_worker);
+                                content::ServiceWorkerCapability status);
 
   void DidFindRegistrationForUpdate(
       ServiceWorkerStatusCode status,
       scoped_refptr<content::ServiceWorkerRegistration> registration);
 
   void DidCheckRenderProcessForNavigationHint(const GURL& document_url,
                                               blink::WebNavigationHintType type,
                                               int render_process_id,
                                               const ResultCallback& callback);
 
@@ skipping 34 matching lines @@
 
   // Must be touched on the UI thread.
   std::map<int, int> navigation_hint_task_count_per_process_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerContextWrapper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WRAPPER_H_