Adds a basic offline check to InstallableManager.

content/browser/service_worker/service_worker_context_wrapper.cc

 // 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.
 
 #include "content/browser/service_worker/service_worker_context_wrapper.h"
 
 #include <map>
 #include <set>
 #include <string>
 #include <utility>
@@ skipping 461 matching lines @@
     usage_info.scopes.push_back(registration_info.pattern);
     usage_info.total_size_bytes += registration_info.stored_version_size_bytes;
   }
 
   for (const auto& origin_info_pair : origins) {
     usage_infos.push_back(origin_info_pair.second);
   }
   callback.Run(usage_infos);
 }
 
-void ServiceWorkerContextWrapper::DidCheckHasServiceWorker(
-    const CheckHasServiceWorkerCallback& callback,
-    bool has_service_worker) {
+void ServiceWorkerContextWrapper::DidCheckServiceWorkerStatus(
+    const CheckServiceWorkerStatusCallback& callback,
+    ServiceWorkerStatus status) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
-                          base::Bind(callback, has_service_worker));
+                          base::Bind(callback, status));
 }
 
 void ServiceWorkerContextWrapper::StopAllServiceWorkersForOrigin(
     const GURL& origin) {
   if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) {
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         base::Bind(&ServiceWorkerContextWrapper::StopAllServiceWorkersForOrigin,
                    this, origin));
     return;
@@ skipping 52 matching lines @@
     BrowserThread::PostTask(
         BrowserThread::IO,
         FROM_HERE,
         base::Bind(result, false));
     return;
   }
   context()->UnregisterServiceWorkers(
       origin.GetOrigin(), base::Bind(&StatusCodeToBoolCallbackAdapter, result));
 }
 
-void ServiceWorkerContextWrapper::CheckHasServiceWorker(
+void ServiceWorkerContextWrapper::CheckServiceWorkerStatus(
     const GURL& url,
     const GURL& other_url,
-    const CheckHasServiceWorkerCallback& callback) {
+    const CheckServiceWorkerStatusCallback& callback) {
   if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) {
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
-        base::Bind(&ServiceWorkerContextWrapper::CheckHasServiceWorker, this,
+        base::Bind(&ServiceWorkerContextWrapper::CheckServiceWorkerStatus, this,
                    url, other_url, callback));
     return;
   }
   if (!context_core_) {
-    BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
-                            base::Bind(callback, false));
+    BrowserThread::PostTask(
+        BrowserThread::UI, FROM_HERE,
+        base::Bind(callback, ServiceWorkerStatus::NO_SERVICE_WORKER));
     return;
   }
-  context()->CheckHasServiceWorker(
+  context()->CheckServiceWorkerStatus(
       net::SimplifyUrlForRequest(url), net::SimplifyUrlForRequest(other_url),
-      base::Bind(&ServiceWorkerContextWrapper::DidCheckHasServiceWorker, this,
-                 callback));
+      base::Bind(&ServiceWorkerContextWrapper::DidCheckServiceWorkerStatus,
+                 this, callback));
 }
 
 void ServiceWorkerContextWrapper::CountExternalRequestsForTest(
     const GURL& origin,
     const CountExternalRequestsCallback& callback) {
   if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) {
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         base::Bind(&ServiceWorkerContextWrapper::CountExternalRequestsForTest,
                    this, origin, callback));
@@ skipping 332 matching lines @@
   observer_list_->Notify(FROM_HERE,
                          &ServiceWorkerContextObserver::OnStorageWiped);
 }
 
 ServiceWorkerContextCore* ServiceWorkerContextWrapper::context() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   return context_core_.get();
 }
 
 }  // namespace content