Add the new window item to the Files.app's context menu on the launcher.

chrome/browser/chromeos/extensions/file_manager/file_browser_private_api.cc

Index: chrome/browser/chromeos/extensions/file_manager/file_browser_private_api.cc
diff --git a/chrome/browser/chromeos/extensions/file_manager/file_browser_private_api.cc b/chrome/browser/chromeos/extensions/file_manager/file_browser_private_api.cc
index b3f9e14beb39891e4455358fb6b028ab0c657b9a..36c99e97ff11b5aeaec1f12841013603e4b71419 100644
--- a/chrome/browser/chromeos/extensions/file_manager/file_browser_private_api.cc
+++ b/chrome/browser/chromeos/extensions/file_manager/file_browser_private_api.cc
@@ -452,7 +452,6 @@ FileBrowserPrivateAPI::FileBrowserPrivateAPI(Profile* profile)
   registry->RegisterFunction<SetLastModifiedFunction>();
   registry->RegisterFunction<ZipSelectionFunction>();
   registry->RegisterFunction<ValidatePathNameLengthFunction>();
-  registry->RegisterFunction<OpenNewWindowFunction>();
   registry->RegisterFunction<ZoomFunction>();
   event_router_->ObserveFileSystemEvents();
 }
@@ -3084,17 +3083,6 @@ void ValidatePathNameLengthFunction::OnFilePathLimitRetrieved(
   SendResponse(true);
 }
 
-OpenNewWindowFunction::OpenNewWindowFunction() {}
-
-OpenNewWindowFunction::~OpenNewWindowFunction() {}
-
-bool OpenNewWindowFunction::RunImpl() {
-  std::string url;
-  EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &url));
-  file_manager_util::OpenNewWindow(profile_, GURL(url));
-  return true;
-}
-
 bool ZoomFunction::RunImpl() {
   content::RenderViewHost* const view_host = render_view_host();
   std::string operation;