Implement function that hides the WebUI Hung Renderer Dialog.

chrome/browser/ui/webui/hung_renderer_dialog.h

 // Copyright (c) 2011 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_HUNG_RENDERER_DIALOG_H_
 #define CHROME_BROWSER_UI_WEBUI_HUNG_RENDERER_DIALOG_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/string16.h"
 #include "base/values.h"
 #include "chrome/browser/ui/webui/html_dialog_ui.h"
 #include "ui/gfx/native_widget_types.h"
 
 class TabContents;
 
 class HungRendererDialog : private HtmlDialogUIDelegate {
  public:
+  // Shows a hung renderer dialog.
+  static void ShowHungRendererDialog(TabContents* contents);
+
+  // Hides a hung renderer dialog.
+  static void HideHungRendererDialog(TabContents* contents);
+
+ private:
   HungRendererDialog();
 
   // Shows the hung renderer dialog.
-  void ShowDialog(gfx::NativeWindow owning_window, TabContents* contents);
+  void ShowDialog(TabContents* contents);
 
- private:
+  // Hides the hung renderer dialog.
+  void HideDialog(TabContents* contents);
+
   // HtmlDialogUIDelegate methods
   virtual bool IsDialogModal() const OVERRIDE;
   virtual string16 GetDialogTitle() const OVERRIDE;
   virtual GURL GetDialogContentURL() const OVERRIDE;
   virtual void GetWebUIMessageHandlers(
       std::vector<WebUIMessageHandler*>* handlers) const OVERRIDE;
   virtual void GetDialogSize(gfx::Size* size) const OVERRIDE;
   virtual std::string GetDialogArgs() const OVERRIDE;
   virtual void OnDialogClosed(const std::string& json_retval) OVERRIDE;
   virtual void OnCloseContents(TabContents* source,
                                bool* out_close_dialog) OVERRIDE;
   virtual bool ShouldShowDialogTitle() const OVERRIDE;
 
   // The tab contents.
   TabContents* contents_;
 
+  // The dialog window.
+  gfx::NativeWindow window_;
+
   DISALLOW_COPY_AND_ASSIGN(HungRendererDialog);
 };
 
 // Dialog handler that handles calls from the JS WebUI code to get the details
 // of the list of frozen tabs.
 class HungRendererDialogHandler : public WebUIMessageHandler {
  public:
   explicit HungRendererDialogHandler(TabContents* contents);
 
   // Overridden from WebUIMessageHandler
   virtual void RegisterMessages();
 
  private:
   void RequestTabContentsList(const base::ListValue* args);
 
   // The tab contents.
   TabContents* contents_;
 
   DISALLOW_COPY_AND_ASSIGN(HungRendererDialogHandler);
 };
 
 
 #endif  // CHROME_BROWSER_UI_WEBUI_HUNG_RENDERER_DIALOG_H_
+