Don't share ServiceWorkerHandle between provider hosts.

content/browser/service_worker/service_worker_handle.h

Index: content/browser/service_worker/service_worker_handle.h
diff --git a/content/browser/service_worker/service_worker_handle.h b/content/browser/service_worker/service_worker_handle.h
index 0e57d9174171d20132a6510665cd74b7f011838c..d6671bc8623ea783293a9a0b97ea1de823a2c4fc 100644
--- a/content/browser/service_worker/service_worker_handle.h
+++ b/content/browser/service_worker/service_worker_handle.h
@@ -40,11 +40,13 @@ class CONTENT_EXPORT ServiceWorkerHandle
       base::WeakPtr<ServiceWorkerContextCore> context,
       IPC::Sender* sender,
       int thread_id,
+      int provider_id,
       ServiceWorkerVersion* version);
 
   ServiceWorkerHandle(base::WeakPtr<ServiceWorkerContextCore> context,
                       IPC::Sender* sender,
                       int thread_id,
+                      int provider_id,
                       ServiceWorkerRegistration* registration,
                       ServiceWorkerVersion* version);
   virtual ~ServiceWorkerHandle();
@@ -68,6 +70,7 @@ class CONTENT_EXPORT ServiceWorkerHandle
   ServiceWorkerObjectInfo GetObjectInfo();
 
   int thread_id() const { return thread_id_; }
+  int provider_id() const { return provider_id_; }
   int handle_id() const { return handle_id_; }
   ServiceWorkerRegistration* registration() { return registration_.get(); }
   ServiceWorkerVersion* version() { return version_.get(); }
@@ -80,6 +83,7 @@ class CONTENT_EXPORT ServiceWorkerHandle
   base::WeakPtr<ServiceWorkerContextCore> context_;
   IPC::Sender* sender_;  // Not owned, it should always outlive this.
   const int thread_id_;
+  const int provider_id_;
   const int handle_id_;
   int ref_count_;  // Created with 1.
   scoped_refptr<ServiceWorkerRegistration> registration_;