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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//    * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//    * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//    * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Contains code for handling "about:" URLs in the renderer process.  We handle
// most about: URLs in the browser process (see
// browser/browser_about_handler.*), but test URLs like about:crash need to
// happen in the renderer.

#ifndef CHROME_RENDERER_ABOUT_HANDLER_H__
#define CHROME_RENDERER_ABOUT_HANDLER_H__

#include "base/basictypes.h"

class GURL;

class AboutHandler {
 public:
  // Given a URL, determine whether or not to handle it specially.  Returns
  // true if the URL was handled.
  static bool MaybeHandle(const GURL& url);

  // Returns true if the URL is one that this AboutHandler will handle when
  // MaybeHandle is called.
  static bool WillHandle(const GURL& url);

  // Induces a renderer crash.
  static void AboutCrash();

  // Induces a renderer hang.
  static void AboutHang();

  // Induces a brief (20 second) hang to make sure hang monitors go away.
  static void AboutShortHang();

 private:
  AboutHandler();
  ~AboutHandler();

  DISALLOW_EVIL_CONSTRUCTORS(AboutHandler);
};

#endif  // CHROME_RENDERER_ABOUT_HANDLER_H__