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 82 matching lines @@
 
   // ServiceWorkerContext implementation:
   void RegisterServiceWorker(const GURL& pattern,
                              const GURL& script_url,
                              const ResultCallback& continuation) override;
   void UnregisterServiceWorker(const GURL& pattern,
                                const ResultCallback& continuation) override;
   void GetAllOriginsInfo(const GetUsageInfoCallback& callback) override;
   void DeleteForOrigin(const GURL& origin,
                        const ResultCallback& callback) override;
-  void CheckHasServiceWorker(
+  void CheckServiceWorkerStatus(
       const GURL& url,
       const GURL& other_url,
-      const CheckHasServiceWorkerCallback& callback) override;
+      const CheckServiceWorkerStatusCallback& callback) override;
   void CountExternalRequestsForTest(
       const GURL& url,
       const CountExternalRequestsCallback& callback) override;
   void StopAllServiceWorkersForOrigin(const GURL& origin) override;
   void ClearAllServiceWorkersForTest(const base::Closure& callback) override;
   void StartServiceWorkerForNavigationHint(
       const GURL& document_url,
       blink::WebNavigationHintType type,
       int render_process_id,
       const ResultCallback& callback) override;
@@ skipping 145 matching lines @@
       const FindRegistrationCallback& callback,
       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);
+  void DidCheckServiceWorkerStatus(
+      const CheckServiceWorkerStatusCallback& callback,
+      content::ServiceWorkerStatus sw_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_