Check BrowsingInstance before swapping prerenders.

chrome/browser/prerender/prerender_final_status.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 CHROME_BROWSER_PRERENDER_PRERENDER_FINAL_STATUS_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_FINAL_STATUS_H_
 
 #include "chrome/browser/prerender/prerender_origin.h"
 
 namespace prerender {
@@ skipping 42 matching lines @@
   // Obsolete: FINAL_STATUS_MATCH_COMPLETE_DUMMY = 38,
   FINAL_STATUS_DUPLICATE = 39,
   FINAL_STATUS_OPEN_URL = 40,
   FINAL_STATUS_WOULD_HAVE_BEEN_USED = 41,
   FINAL_STATUS_REGISTER_PROTOCOL_HANDLER = 42,
   FINAL_STATUS_CREATING_AUDIO_STREAM = 43,
   FINAL_STATUS_PAGE_BEING_CAPTURED = 44,
   FINAL_STATUS_BAD_DEFERRED_REDIRECT = 45,
   FINAL_STATUS_NAVIGATION_UNCOMMITTED = 46,
   FINAL_STATUS_NEW_NAVIGATION_ENTRY = 47,
+  FINAL_STATUS_NON_EMPTY_BROWSING_INSTANCE = 48,
   FINAL_STATUS_MAX,
 };
 
 // Return a human-readable name for |final_status|. |final_status|
 // is expected to be a valid value.
 const char* NameFromFinalStatus(FinalStatus final_status);
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_FINAL_STATUS_H_