Make WebUI webview content script work with incognito.

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/version.h"
@@ skipping 149 matching lines @@
        it != scripts.end();
        ++it) {
     removed_scripts_.erase(*it);
     added_scripts_.insert(*it);
   }
   AttemptLoad();
 }
 
 void UserScriptLoader::AddScripts(const std::set<UserScript>& scripts,
                                   int render_process_id,
-                                  int render_view_id) {
+                                  int render_view_id,
+                                  bool is_incognito) {
   AddScripts(scripts);
 }
 
 void UserScriptLoader::RemoveScripts(const std::set<UserScript>& scripts) {
   for (std::set<UserScript>::const_iterator it = scripts.begin();
        it != scripts.end();
        ++it) {
     added_scripts_.erase(*it);
     removed_scripts_.insert(*it);
   }
@@ skipping 203 matching lines @@
   if (!shared_memory->ShareToProcess(handle, &handle_for_process))
     return;  // This can legitimately fail if the renderer asserts at startup.
 
   if (base::SharedMemory::IsHandleValid(handle_for_process)) {
     process->Send(new ExtensionMsg_UpdateUserScripts(handle_for_process,
                                                      host_id(), changed_hosts));
   }
 }
 
 }  // namespace extensions