Move constrained web dialog code back to chrome/.

ui/web_dialogs/constrained_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 UI_WEB_DIALOGS_CONSTRAINED_WEB_DIALOG_UI_H_
-#define UI_WEB_DIALOGS_CONSTRAINED_WEB_DIALOG_UI_H_
-
-#include "base/compiler_specific.h"
-#include "content/public/browser/web_ui_controller.h"
-#include "ui/web_dialogs/web_dialogs_export.h"
-
-class ConstrainedWindow;
-class Profile;
-class TabContents;
-
-namespace content {
-class RenderViewHost;
-class WebContents;
-}
-
-namespace ui {
-class WebDialogDelegate;
-class WebDialogWebContentsDelegate;
-
-class WEB_DIALOGS_EXPORT ConstrainedWebDialogDelegate {
- public:
-  virtual const WebDialogDelegate* GetWebDialogDelegate() const = 0;
-  virtual WebDialogDelegate* GetWebDialogDelegate() = 0;
-
-  // Called when the dialog is being closed in response to a "DialogClose"
-  // message from WebUI.
-  virtual void OnDialogCloseFromWebUI() = 0;
-
-  // If called, on dialog closure, the dialog will release its WebContents
-  // instead of destroying it. After which point, the caller will own the
-  // released WebContents.
-  virtual void ReleaseTabContentsOnDialogClose() = 0;
-
-  // Returns the ConstrainedWindow.
-  // TODO: fix this function name and the one below to conform to the style
-  // guide (i.e. GetWindow, GetTab).
-  virtual ConstrainedWindow* window() = 0;
-
-  // Returns the TabContents owned by the constrained window.
-  virtual TabContents* tab() = 0;
-
- protected:
-  virtual ~ConstrainedWebDialogDelegate() {}
-};
-
-// ConstrainedWebDialogUI is a facility to show HTML WebUI content
-// in a tab-modal constrained dialog.  It is implemented as an adapter
-// between an WebDialogUI object and a ConstrainedWindow object.
-//
-// Since ConstrainedWindow requires platform-specific delegate
-// implementations, this class is just a factory stub.
-// TODO(thestig) Refactor the platform-independent code out of the
-// platform-specific implementations.
-class WEB_DIALOGS_EXPORT ConstrainedWebDialogUI
-    : public content::WebUIController {
- public:
-  explicit ConstrainedWebDialogUI(content::WebUI* web_ui);
-  virtual ~ConstrainedWebDialogUI();
-
-  // WebUIController implementation:
-  virtual void RenderViewCreated(
-      content::RenderViewHost* render_view_host) OVERRIDE;
-
-  // Sets the delegate on the WebContents.
-  static void SetConstrainedDelegate(content::WebContents* web_contents,
-                                     ConstrainedWebDialogDelegate* delegate);
-
- protected:
-  // Returns the ConstrainedWebDialogDelegate saved with the WebContents.
-  // Returns NULL if no such delegate is set.
-  ConstrainedWebDialogDelegate* GetConstrainedDelegate();
-
- private:
-  // JS Message Handler
-  void OnDialogCloseMessage(const base::ListValue* args);
-
-  DISALLOW_COPY_AND_ASSIGN(ConstrainedWebDialogUI);
-};
-
-// Create a constrained HTML dialog. The actual object that gets created
-// is a ConstrainedWebDialogDelegate, which later triggers construction of a
-// ConstrainedWebDialogUI object.
-// |profile| is used to construct the constrained HTML dialog's WebContents.
-// |delegate| controls the behavior of the dialog.
-// |tab_delegate| is optional, pass one in to use a custom
-//                WebDialogWebContentsDelegate with the dialog, or NULL to
-//                use the default one. The dialog takes ownership of
-//                |tab_delegate|.
-// |overshadowed| is the tab being overshadowed by the dialog.
-ConstrainedWebDialogDelegate* CreateConstrainedWebDialog(
-    Profile* profile,
-    WebDialogDelegate* delegate,
-    WebDialogWebContentsDelegate* tab_delegate,
-    TabContents* overshadowed);
-
-}  // namespace ui
-
-#endif  // UI_WEB_DIALOGS_CONSTRAINED_WEB_DIALOG_UI_H_