Linux: Catch plugin crashes.

chrome/browser/renderer_host/render_crash_handler_host_linux.h

-// Copyright (c) 2009 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_RENDERER_HOST_RENDER_CRASH_HANDLER_HOST_LINUX_H_
-#define CHROME_BROWSER_RENDERER_HOST_RENDER_CRASH_HANDLER_HOST_LINUX_H_
-
-#include "base/singleton.h"
-#include "base/message_loop.h"
-
-// This is a singleton object which crash dumps renderers on Linux. We perform
-// the crash dump from the browser because it allows us to be outside the
-// sandbox.
-//
-// Renderers signal that they need to be dumped by sending a datagram over a
-// UNIX domain socket. All renderers share the client end of this socket which
-// is installed in their descriptor table before exec.
-class RenderCrashHandlerHostLinux : public MessageLoopForIO::Watcher,
-                                    public MessageLoop::DestructionObserver {
- public:
-  // Get the file descriptor which renderers should be given in order to signal
-  // crashes to the browser.
-  int GetDeathSignalSocket() const {
-    return renderer_socket_;
-  }
-
-  // MessagePumbLibevent::Watcher impl:
-  virtual void OnFileCanWriteWithoutBlocking(int fd);
-  virtual void OnFileCanReadWithoutBlocking(int fd);
-
-  // MessageLoop::DestructionObserver impl:
-  virtual void WillDestroyCurrentMessageLoop();
-
- private:
-  friend struct DefaultSingletonTraits<RenderCrashHandlerHostLinux>;
-  RenderCrashHandlerHostLinux();
-  ~RenderCrashHandlerHostLinux();
-  void Init();
-
-  int renderer_socket_;
-  int browser_socket_;
-  MessageLoopForIO::FileDescriptorWatcher file_descriptor_watcher_;
-
-  DISALLOW_EVIL_CONSTRUCTORS(RenderCrashHandlerHostLinux);
-};
-
-#endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_CRASH_HANDLER_HOST_LINUX_H_