Delete some dead code.

content/browser/worker_host/worker_service_impl.cc

 // Copyright (c) 2012 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/browser/worker_host/worker_service_impl.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 343 matching lines @@
     // TODO(atwilson): This won't work if the message is from a worker process.
     // We don't support that yet though (this message is only sent from
     // renderers) but when we do, we'll need to add code to pass in the current
     // worker's document set for nested workers.
     instance->worker_document_set()->Add(
         filter, params.document_id, filter->render_process_id(),
         params.render_view_route_id);
   }
 }
 
-void WorkerServiceImpl::CancelCreateDedicatedWorker(
-    int route_id,
-    WorkerMessageFilter* filter) {
-
-  NOTREACHED();
-}
-
 void WorkerServiceImpl::ForwardToWorker(const IPC::Message& message,
                                         WorkerMessageFilter* filter) {
   for (WorkerProcessHostIterator iter; !iter.Done(); ++iter) {
     if (iter->FilterMessage(message, filter))
       return;
   }
 
   // TODO(jabdelmalek): tell filter that callee is gone
 }
 
@@ skipping 344 matching lines @@
     return instance;
 
   // No existing pending worker - create a new one.
   WorkerProcessHost::WorkerInstance pending(
       url, true, name, resource_context, partition);
   pending_shared_workers_.push_back(pending);
   return &pending_shared_workers_.back();
 }
 
 }  // namespace content