content: convert child process notifications to observer usage

content/public/browser/notification_types.h

 // Copyright (c) 2012 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 CONTENT_PUBLIC_BROWSER_NOTIFICATION_TYPES_H_
 #define CONTENT_PUBLIC_BROWSER_NOTIFICATION_TYPES_H_
 
 // This file describes various types used to describe and filter notifications
 // that pass through the NotificationService.
 //
@@ skipping 247 matching lines @@
   // Indicates that the render view host has received a "layout complete"
   // accessibility notification. The source is the RenderViewHost,
   // the details are not used.
   NOTIFICATION_ACCESSIBILITY_LAYOUT_COMPLETE,
 
   // Indicates that the render view host has received an accessibility
   // notification. other than the ones covered above.
   // The source is the RenderViewHost, the details are not used.
   NOTIFICATION_ACCESSIBILITY_OTHER,
 
-  // Child Processes ---------------------------------------------------------
-
-  // This notification is sent when a child process host has connected to a
-  // child process.  There is no usable source, since it is sent from an
-  // ephemeral task; register for AllSources() to receive this notification.
-  // The details are in a Details<ChildProcessData>.
-  NOTIFICATION_CHILD_PROCESS_HOST_CONNECTED,
-
-  // This message is sent after a ChildProcessHost is disconnected from the
-  // child process.  There is no usable source, since it is sent from an
-  // ephemeral task; register for AllSources() to receive this notification.
-  // The details are in a Details<ChildProcessData>.
-  NOTIFICATION_CHILD_PROCESS_HOST_DISCONNECTED,
-
-  // This message is sent when a child process disappears
-  // unexpectedly as a result of a crash.  There is no usable
-  // source, since it is sent from an ephemeral task; register for
-  // AllSources() to receive this notification.  The details are in
-  // a Details<ChildProcessData>.
-  NOTIFICATION_CHILD_PROCESS_CRASHED,
-
-  // This message indicates that an instance of a particular child was
-  // created in a page.  (If one page contains several regions rendered by
-  // the same child, this notification will occur once for each region
-  // during the page load.)
-  //
-  // There is no usable source, since it is sent from an ephemeral task;
-  // register for AllSources() to receive this notification.  The details are
-  // in a Details<ChildProcessData>.
-  NOTIFICATION_CHILD_INSTANCE_CREATED,
-
   // Miscellaneous -------------------------------------------------------------
 
   // Sent before the repost form warning is brought up.
   // The source is a NavigationController.
   NOTIFICATION_REPOST_WARNING_SHOWN,
 
   // Custom notifications used by the embedder should start from here.
   NOTIFICATION_CONTENT_END,
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_NOTIFICATION_TYPES_H_