Change multi-prerender API to include per launcher slots.

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 {
 
 // FinalStatus indicates whether |this| was used, or why it was cancelled.
 // NOTE: New values need to be appended, since they are used in histograms.
 enum FinalStatus {
   FINAL_STATUS_USED = 0,
   FINAL_STATUS_TIMED_OUT = 1,
-  FINAL_STATUS_EVICTED = 2,
+  // Obsolete: FINAL_STATUS_EVICTED = 2,
   FINAL_STATUS_MANAGER_SHUTDOWN = 3,
   // Obsolete: FINAL_STATUS_CLOSED = 4
   FINAL_STATUS_CREATE_NEW_WINDOW = 5,
   FINAL_STATUS_PROFILE_DESTROYED = 6,
   FINAL_STATUS_APP_TERMINATING = 7,
   FINAL_STATUS_JAVASCRIPT_ALERT = 8,
   FINAL_STATUS_AUTH_NEEDED = 9,
   FINAL_STATUS_HTTPS = 10,
   FINAL_STATUS_DOWNLOAD = 11,
   FINAL_STATUS_MEMORY_LIMIT_EXCEEDED = 12,
@@ skipping 30 matching lines @@
   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_