[BackgroundSync] Only allow SyncManager.register to occur from main frame

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 <vector>
 
 #include "base/files/file_path.h"
@@ skipping 24 matching lines @@
 
 // A refcounted wrapper class for our core object. Higher level content lib
 // classes keep references to this class on mutliple threads. The inner core
 // instance is strictly single threaded and is not refcounted, the core object
 // is what is used internally in the service worker lib.
 class CONTENT_EXPORT ServiceWorkerContextWrapper
     : NON_EXPORTED_BASE(public ServiceWorkerContext),
       public base::RefCountedThreadSafe<ServiceWorkerContextWrapper> {
  public:
   using StatusCallback = base::Callback<void(ServiceWorkerStatusCode)>;
+  using BoolCallback = base::Callback<void(bool)>;
   using FindRegistrationCallback =
       ServiceWorkerStorage::FindRegistrationCallback;
   using GetRegistrationsInfosCallback =
       ServiceWorkerStorage::GetRegistrationsInfosCallback;
   using GetUserDataCallback = ServiceWorkerStorage::GetUserDataCallback;
   using GetUserDataForAllRegistrationsCallback =
       ServiceWorkerStorage::GetUserDataForAllRegistrationsCallback;
 
   ServiceWorkerContextWrapper(BrowserContext* browser_context);
 
@@ skipping 41 matching lines @@
       const GURL& other_url,
       const CheckHasServiceWorkerCallback& callback) override;
   void StopAllServiceWorkersForOrigin(const GURL& origin) override;
   void ClearAllServiceWorkersForTest(const base::Closure& callback) override;
 
   ServiceWorkerRegistration* GetLiveRegistration(int64_t registration_id);
   ServiceWorkerVersion* GetLiveVersion(int64_t version_id);
   std::vector<ServiceWorkerRegistrationInfo> GetAllLiveRegistrationInfo();
   std::vector<ServiceWorkerVersionInfo> GetAllLiveVersionInfo();
 
-  bool HasWindowProviderHost(const GURL& origin) const;
+  void HasMainFrameProviderHost(const GURL& origin,
+                                const BoolCallback& callback) const;
 
   // Returns the registration whose scope longest matches |document_url|.
   // Returns ERROR_NOT_FOUND if it is not found.
   void FindRegistrationForDocument(const GURL& document_url,
                                    const FindRegistrationCallback& callback);
 
   // Returns the registration for |registration_id|. It is guaranteed that the
   // returned registration has the activated worker.
   //
   //  - If the registration is not found, returns ERROR_NOT_FOUND.
@@ skipping 94 matching lines @@
 
   // The ResourceContext associated with this context.
   ResourceContext* resource_context_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerContextWrapper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WRAPPER_H_