Refactored out JS specific part of modal dialog stack into its own class, exp...

chrome/browser/views/modal_dialog_delegate.cc

+// Copyright (c) 2006-2008 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 "chrome/browser/views/modal_dialog_delegate.h"
+
+#include "views/window/window.h"
+
+void ModalDialogDelegate::ShowModalDialog() {
+  gfx::NativeWindow root_hwnd = GetDialogRootWindow();
+  // GetMessageBoxRootWindow() will be NULL if there's no selected tab (e.g.,
+  // during shutdown), in which case we simply skip showing this dialog.
+  if (!root_hwnd) {
+    Cancel();
+  } else {
+    dialog_ = views::Window::CreateChromeWindow(root_hwnd, gfx::Rect(), this);
+    dialog_->Show();
+  }
+}
+
+void ModalDialogDelegate::ActivateModalDialog() {
+  // Ensure that the dialog is visible and at the top of the z-order. These
+  // conditions may not be true if the dialog was opened on a different virtual
+  // desktop to the one the browser window is on.
+  dialog_->Show();
+  dialog_->Activate();
+}
+
+void ModalDialogDelegate::CloseModalDialog() {
+  // If the dialog is visible close it.
+  if (dialog_)
+    dialog_->Close();
+}
+
+ModalDialogDelegate::ModalDialogDelegate() : dialog_(NULL) {
+}
+