Don't share ServiceWorkerHandle between provider hosts.

content/browser/service_worker/service_worker_dispatcher_host.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_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_
 
 #include <vector>
 
 #include "base/id_map.h"
@@ skipping 79 matching lines @@
   void OnPostMessage(int handle_id,
                      const base::string16& message,
                      const std::vector<int>& sent_message_port_ids);
   void OnIncrementServiceWorkerRefCount(int handle_id);
   void OnDecrementServiceWorkerRefCount(int handle_id);
   void OnPostMessageToWorker(int handle_id,
                              const base::string16& message,
                              const std::vector<int>& sent_message_port_ids);
   void OnServiceWorkerObjectDestroyed(int handle_id);
 
-  ServiceWorkerHandle* FindHandle(int thread_id, int64 version_id);
+  ServiceWorkerHandle* FindHandle(int provider_id, int64 version_id);
 
   // Callbacks from ServiceWorkerContextCore
   void RegistrationComplete(int thread_id,
+                            int provider_id,
                             int request_id,
                             ServiceWorkerStatusCode status,
                             int64 registration_id,
                             int64 version_id);
 
   void UnregistrationComplete(int thread_id,
                               int request_id,
                               ServiceWorkerStatusCode status);
 
   void SendRegistrationError(int thread_id,
@@ skipping 10 matching lines @@
 
   bool channel_ready_;  // True after BrowserMessageFilter::sender_ != NULL.
   ScopedVector<IPC::Message> pending_messages_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerDispatcherHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DISPATCHER_HOST_H_