Refactoring: de-couple Extensions from "script injection System" [render side]:4

extensions/browser/user_script_loader.cc

 // 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.
 
 #include "extensions/browser/user_script_loader.h"
 
 #include <set>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 476 matching lines @@
   // If the process is being started asynchronously, early return.  We'll end up
   // calling InitUserScripts when it's created which will call this again.
   base::ProcessHandle handle = process->GetHandle();
   if (!handle)
     return;
 
   base::SharedMemoryHandle handle_for_process;
   if (!shared_memory->ShareToProcess(handle, &handle_for_process))
     return;  // This can legitimately fail if the renderer asserts at startup.
 
-  // TODO(hanxi): update the IPC message to send a set of HostIDs to render.
-  // Also, remove this function when the refactor is done on render side.
-  std::set<std::string> changed_ids_set;
-  for (const HostID& id : changed_hosts)
-    changed_ids_set.insert(id.id());
-
   if (base::SharedMemory::IsHandleValid(handle_for_process)) {
-    process->Send(new ExtensionMsg_UpdateUserScripts(
-        handle_for_process, host_id().id(), changed_ids_set));
+    process->Send(new ExtensionMsg_UpdateUserScripts(handle_for_process,
+                                                     host_id(), changed_hosts));
   }
 }
 
 }  // namespace extensions