Use BaseShellDialog for print dialog on Windows

ui/shell_dialogs/print_settings_dialog_win.cc

+// Copyright 2013 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 "ui/shell_dialogs/print_settings_dialog_win.h"
+
+#include "base/bind.h"
+#include "base/threading/thread.h"
+
+#if defined(USE_AURA)
+#include "ui/aura/root_window.h"
+#endif
+
+namespace ui {
+
+PrintSettingsDialogWin::PrintSettingsDialogWin(
+    PrintSettingsDialogWin::Observer* observer)
+    : observer_(observer) {
+}
+
+PrintSettingsDialogWin::~PrintSettingsDialogWin() {
+}
+
+void PrintSettingsDialogWin::GetPrintSettings(PrintDialogFunc print_dialog_func,
+                                              HWND owning_window,
+                                              PRINTDLGEX* dialog_options) {
+  DCHECK(observer_);
+
+  ExecutePrintSettingsParams execute_params(BeginRun(owning_window),
+                                            owning_window,
+                                            print_dialog_func,
+                                            dialog_options);
+  execute_params.run_state.dialog_thread->message_loop()->PostTask(
+      FROM_HERE,
+      base::Bind(
+          &PrintSettingsDialogWin::ExecutePrintSettings, this, execute_params));
+}
+
+void PrintSettingsDialogWin::ExecutePrintSettings(
+    const ExecutePrintSettingsParams& params) {
+  HRESULT hr = (*params.print_dialog_func)(params.dialog_options);
+  params.ui_proxy->PostTask(
+      FROM_HERE,
+      base::Bind(
+          &PrintSettingsDialogWin::PrintSettingsCompleted, this, hr, params));
+}
+
+void PrintSettingsDialogWin::PrintSettingsCompleted(
+    HRESULT hresult,
+    const ExecutePrintSettingsParams& params) {
+  EndRun(params.run_state);
+  if (hresult != S_OK)
+    observer_->PrintSettingsCancelled(params.dialog_options);
+  else
+    observer_->PrintSettingsConfirmed(params.dialog_options);
+}
+
+}  // namespace ui