Remove the unused source_process_id and provider_host arguments to SW unregistration.

content/browser/service_worker/service_worker_context_unittest.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/public/browser/service_worker_context.h"
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "content/browser/browser_thread_impl.h"
@@ skipping 251 matching lines @@
       NULL,
       MakeRegisteredCallback(&called, &registration_id, &version_id));
 
   ASSERT_FALSE(called);
   base::RunLoop().RunUntilIdle();
   ASSERT_TRUE(called);
   EXPECT_NE(kInvalidServiceWorkerRegistrationId, registration_id);
   EXPECT_NE(kInvalidServiceWorkerVersionId, version_id);
 
   called = false;
-  context_->UnregisterServiceWorker(
-      pattern, render_process_id_, NULL, MakeUnregisteredCallback(&called));
+  context_->UnregisterServiceWorker(pattern, MakeUnregisteredCallback(&called));
 
   ASSERT_FALSE(called);
   base::RunLoop().RunUntilIdle();
   ASSERT_TRUE(called);
 
   context_->storage()->FindRegistrationForId(
       registration_id,
       base::Bind(&ExpectRegisteredWorkers,
                  SERVICE_WORKER_ERROR_NOT_FOUND,
                  kInvalidServiceWorkerVersionId,
@@ skipping 78 matching lines @@
       MakeRegisteredCallback(&called, &new_registration_id, &new_version_id));
 
   ASSERT_FALSE(called);
   base::RunLoop().RunUntilIdle();
   ASSERT_TRUE(called);
   EXPECT_EQ(old_registration_id, new_registration_id);
   EXPECT_EQ(old_version_id, new_version_id);
 }
 
 }  // namespace content