extensions/browser/process_manager_observer.h

   1 // Copyright 2014 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 EXTENSIONS_BROWSER_PROCESS_MANAGER_OBSERVER_H_
   6 #define EXTENSIONS_BROWSER_PROCESS_MANAGER_OBSERVER_H_
   7
   8 #include <string>
   9
  10 namespace content {
  11 class RenderFrameHost;
  12 }
  13
  14 namespace extensions {
  15 class Extension;
  16 class ExtensionHost;
  17
  18 class ProcessManagerObserver {
  19  public:
  20   // Called immediately after an extension background host is started.
  21   virtual void OnBackgroundHostStartup(const Extension* extension) {}
  22
  23   // Called immediately after an ExtensionHost for an extension with a lazy
  24   // background page is created.
  25   virtual void OnBackgroundHostCreated(ExtensionHost* host) {}
  26
  27   // Called immediately after the extension background host is destroyed.
  28   virtual void OnBackgroundHostClose(const std::string& extension_id) {}
  29
  30   virtual void OnExtensionFrameRegistered(
  31       const std::string& extension_id,
  32       content::RenderFrameHost* render_frame_host) {}
  33
  34   virtual void OnExtensionFrameUnregistered(
  35       const std::string& extension_id,
  36       content::RenderFrameHost* render_frame_host) {}
  37 };
  38
  39 }  // namespace extensions
  40
  41 #endif  // EXTENSIONS_BROWSER_PROCESS_MANAGER_OBSERVER_H_