chromeos: Make "mobile network" and "set time" dialogs work with mash

chrome/browser/chromeos/ui/choose_mobile_network_dialog.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_UI_CHOOSE_MOBILE_NETWORK_DIALOG_H_
 #define CHROME_BROWSER_CHROMEOS_UI_CHOOSE_MOBILE_NETWORK_DIALOG_H_
 
-#include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/web_dialogs/web_dialog_delegate.h"
 
 namespace chromeos {
 
 // Dialog for manual selection of cellular network.
 class ChooseMobileNetworkDialog : public ui::WebDialogDelegate {
  public:
-  // Shows the dialog box.
+  // Shows the dialog box. |owning_window| may be null.

[msw, 2016/10/24 22:18:09]

nit: Maybe explain the significance of |owning_window| and what happens when
it's null?

[James Cook, 2016/10/25 00:29:04]

Done (and renamed to parent).

   static void ShowDialog(gfx::NativeWindow owning_window);
 
+  // Shows the dialog in an ash window container.
+  static void ShowDialogInContainer(int container_id);
+
  private:
   ChooseMobileNetworkDialog();
 
   // Overridden from ui::WebDialogDelegate:
   ui::ModalType GetDialogModalType() const override;
   base::string16 GetDialogTitle() const override;
   GURL GetDialogContentURL() const override;
   void GetWebUIMessageHandlers(
       std::vector<content::WebUIMessageHandler*>* handlers) const override;
   void GetDialogSize(gfx::Size* size) const override;
   std::string GetDialogArgs() const override;
   void OnDialogClosed(const std::string& json_retval) override;
   void OnCloseContents(content::WebContents* source,
                        bool* out_close_dialog) override;
   bool ShouldShowDialogTitle() const override;
   bool HandleContextMenu(const content::ContextMenuParams& params) override;
 
   DISALLOW_COPY_AND_ASSIGN(ChooseMobileNetworkDialog);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_UI_CHOOSE_MOBILE_NETWORK_DIALOG_H_