Remove the unused source_process_id and provider_host arguments to SW unregistration.

content/public/browser/service_worker_context.h

 // Copyright 2014 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_PUBLIC_BROWSER_SERVICE_WORKER_CONTEXT_H_
 #define CONTENT_PUBLIC_BROWSER_SERVICE_WORKER_CONTEXT_H_
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "url/gurl.h"
@@ skipping 21 matching lines @@
   //  * Fetching |script_url| fails.
   //  * |script_url| fails to parse or its top-level execution fails.
   //    TODO: The error message for this needs to be available to developers.
   //  * Something unexpected goes wrong, like a renderer crash or a full disk.
   virtual void RegisterServiceWorker(const Scope& pattern,
                                      const GURL& script_url,
                                      int source_process_id,
                                      const ResultCallback& callback) = 0;
 
   // Equivalent to calling navigator.serviceWorker.unregister(pattern) from a
-  // renderer in |source_process_id|, except that |pattern| is an absolute URL
-  // instead of relative to some current origin.  |callback| is passed true
-  // when the JS promise is fulfilled or false when the JS promise is rejected.
+  // renderer, except that |pattern| is an absolute URL instead of relative to
+  // some current origin.  |callback| is passed true when the JS promise is
+  // fulfilled or false when the JS promise is rejected.
   //
   // Unregistration can fail if:
   //  * No Service Worker was registered for |pattern|.
   //  * Something unexpected goes wrong, like a renderer crash.
   virtual void UnregisterServiceWorker(const Scope& pattern,
-                                       int source_process_id,
                                        const ResultCallback& callback) = 0;
 
   // TODO(jyasskin): Provide a way to SendMessage to a Scope.
 
  protected:
   ServiceWorkerContext() {}
   virtual ~ServiceWorkerContext() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_SERVICE_WORKER_CONTEXT_H_