Remove NOTIFICATION_RENDER_VIEW_HOST_CHANGED.

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 94 matching lines @@
   // WebContents ---------------------------------------------------------------
 
   // This notification is sent when a render view host has connected to a
   // renderer process. The source is a Source<WebContents> with a pointer to
   // the WebContents.  A WEB_CONTENTS_DISCONNECTED notification is
   // guaranteed before the source pointer becomes junk.  No details are
   // expected.
   // DEPRECATED: Use WebContentsObserver::RenderViewReady()
   NOTIFICATION_WEB_CONTENTS_CONNECTED,
 
-  // This notification is sent when a WebContents swaps its render view host
-  // with another one, possibly changing processes. The source is a
-  // Source<WebContents> with a pointer to the WebContents, details is a
-  // std::pair::<old RenderViewHost, new RenderViewHost>.
-  // DEPRECATED: Use WebContentsObserver::RenderViewHostChanged()
-  NOTIFICATION_RENDER_VIEW_HOST_CHANGED,
-
   // This message is sent after a WebContents is disconnected from the
   // renderer process.  The source is a Source<WebContents> with a pointer to
   // the WebContents (the pointer is usable).  No details are expected.
   // DEPRECATED: This is fired in two situations: when the render process
   // crashes, in which case use WebContentsObserver::RenderProcessGone, and when
   // the WebContents is being torn down, in which case use
   // WebContentsObserver::WebContentsDestroyed()
   NOTIFICATION_WEB_CONTENTS_DISCONNECTED,
 
   // This notification is sent after WebContents' title is updated. The source
@@ skipping 82 matching lines @@
   // the RenderViewHost, and the details is a DomOperationNotificationDetails.
   NOTIFICATION_DOM_OPERATION_RESPONSE,
 
   // Custom notifications used by the embedder should start from here.
   NOTIFICATION_CONTENT_END,
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_NOTIFICATION_TYPES_H_