Extract a minimal subset of WebDialogUI/WebDialogDelegate from src/chrome -> src/ui/web_dialogs

chrome/browser/ui/webui/web_dialog_ui.h

-// Copyright (c) 2012 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_UI_WEBUI_WEB_DIALOG_UI_H_
-#define CHROME_BROWSER_UI_WEBUI_WEB_DIALOG_UI_H_
-#pragma once
-
-#include <string>
-#include <vector>
-
-#include "base/compiler_specific.h"
-#include "base/string16.h"
-#include "content/public/browser/web_contents_delegate.h"
-#include "content/public/browser/web_ui_controller.h"
-#include "googleurl/src/gurl.h"
-#include "ui/base/ui_base_types.h"
-
-
-namespace base {
-class ListValue;
-template<class T> class PropertyAccessor;
-}
-
-namespace content {
-class WebContents;
-class WebUIMessageHandler;
-struct ContextMenuParams;
-}
-
-namespace gfx {
-class Size;
-}
-
-class WebDialogDelegate;
-
-// Displays file URL contents inside a modal web dialog.
-//
-// This application really should not use WebContents + WebUI. It should instead
-// just embed a RenderView in a dialog and be done with it.
-//
-// Before loading a URL corresponding to this WebUI, the caller should set its
-// delegate as a property on the WebContents. This WebUI will pick it up from
-// there and call it back. This is a bit of a hack to allow the dialog to pass
-// its delegate to the Web UI without having nasty accessors on the WebContents.
-// The correct design using RVH directly would avoid all of this.
-class WebDialogUI : public content::WebUIController {
- public:
-  struct WebDialogParams {
-    // The URL for the content that will be loaded in the dialog.
-    GURL url;
-    // Width of the dialog.
-    int width;
-    // Height of the dialog.
-    int height;
-    // The JSON input to pass to the dialog when showing it.
-    std::string json_input;
-  };
-
-  // When created, the property should already be set on the WebContents.
-  explicit WebDialogUI(content::WebUI* web_ui);
-  virtual ~WebDialogUI();
-
-  // Close the dialog, passing the specified arguments to the close handler.
-  void CloseDialog(const base::ListValue* args);
-
-  // Returns the PropertyBag accessor object used to write the delegate pointer
-  // into the WebContents (see class-level comment above).
-  static base::PropertyAccessor<WebDialogDelegate*>& GetPropertyAccessor();
-
- private:
-  // WebUIController
-  virtual void RenderViewCreated(
-      content::RenderViewHost* render_view_host) OVERRIDE;
-
-  // JS message handler.
-  void OnDialogClosed(const base::ListValue* args);
-
-  DISALLOW_COPY_AND_ASSIGN(WebDialogUI);
-};
-
-// Displays external URL contents inside a modal web dialog.
-//
-// Intended to be the place to collect the settings and lockdowns
-// necessary for running external UI components securely (e.g., the
-// cloud print dialog).
-class ExternalWebDialogUI : public WebDialogUI {
- public:
-  explicit ExternalWebDialogUI(content::WebUI* web_ui);
-  virtual ~ExternalWebDialogUI();
-};
-
-#endif  // CHROME_BROWSER_UI_WEBUI_WEB_DIALOG_UI_H_