1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_PUBLIC_BROWSER_BROWSER_CHILD_PROCESS_OBSERVER_H_ 6 #define CONTENT_PUBLIC_BROWSER_BROWSER_CHILD_PROCESS_OBSERVER_H_ 7 8 #include "content/common/content_export.h" 9 10 namespace content { 11 12 struct ChildProcessData; 13 14 // An observer API implemented by classes which are interested 15 // in browser child process events. 16 class CONTENT_EXPORT BrowserChildProcessObserver { 17 public: 18 // Called when a child process host has connected to a child process. 19 virtual void BrowserChildProcessHostConnected(const ChildProcessData& data) {} 20 21 // Called after a ChildProcessHost is disconnected from the child process. 22 virtual void BrowserChildProcessHostDisconnected( 23 const ChildProcessData& data) {} 24 25 // Called when a child process disappears unexpectedly as a result of a crash. 26 virtual void BrowserChildProcessCrashed(const ChildProcessData& data) {} 27 28 // Called when an instance of a particular child is created in a page. If one 29 // page contains several regions rendered by the same child, this will be 30 // called once for each region during the page load. 31 virtual void BrowserChildProcessInstanceCreated( 32 const ChildProcessData& data) {} 33 34 protected: 35 // The observer can be destroyed on any thread. 36 virtual ~BrowserChildProcessObserver() {} 37 38 static void Add(BrowserChildProcessObserver* observer); 39 static void Remove(BrowserChildProcessObserver* observer); 40 }; 41 42 } // namespace content 43 44 #endif // CONTENT_PUBLIC_BROWSER_BROWSER_CHILD_PROCESS_OBSERVER_H_ 45
