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// Copyright 2013 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.
#include "content/common/content_export.h"
namespace content {
struct ChildProcessData;
// An observer API implemented by classes which are interested in browser child
// process events. Note that render processes cannot be observed through this
// interface; use RenderProcessHostObserver instead.
class CONTENT_EXPORT BrowserChildProcessObserver {
// Called when a child process host has connected to a child process.
virtual void BrowserChildProcessHostConnected(const ChildProcessData& data) {}
// Called after a ChildProcessHost is disconnected from the child process.
virtual void BrowserChildProcessHostDisconnected(
const ChildProcessData& data) {}
// Called when a child process disappears unexpectedly as a result of a crash.
// |exit_code| contains the exit code from the process.
virtual void BrowserChildProcessCrashed(const ChildProcessData& data,
int exit_code) {}
// Called when an instance of a particular child is created in a page. If one
// page contains several regions rendered by the same child, this will be
// called once for each region during the page load.
virtual void BrowserChildProcessInstanceCreated(
const ChildProcessData& data) {}
// The observer can be destroyed on any thread.
virtual ~BrowserChildProcessObserver() {}
static void Add(BrowserChildProcessObserver* observer);
static void Remove(BrowserChildProcessObserver* observer);
} // namespace content