Remove PrerenderManager::OnCloseWebContentsDeleter::SwappedOut

chrome/browser/prerender/prerender_manager.cc

 // 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.
 
 #include "chrome/browser/prerender/prerender_manager.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <functional>
@@ skipping 126 matching lines @@
         base::Bind(&OnCloseWebContentsDeleter::ScheduleWebContentsForDeletion,
                    AsWeakPtr(), true),
         base::TimeDelta::FromSeconds(kDeleteWithExtremePrejudiceSeconds));
   }
 
   void CloseContents(WebContents* source) override {
     DCHECK_EQ(tab_.get(), source);
     ScheduleWebContentsForDeletion(false);
   }
 
-  void SwappedOut(WebContents* source) override {
-    DCHECK_EQ(tab_.get(), source);
-    ScheduleWebContentsForDeletion(false);
-  }
-
   bool ShouldSuppressDialogs(WebContents* source) override {
     // Use this as a proxy for getting statistics on how often we fail to honor
     // the beforeunload event.
     DCHECK_EQ(tab_.get(), source);
     suppressed_dialog_ = true;
     return true;
   }
 
  private:
   static const int kDeleteWithExtremePrejudiceSeconds = 3;
@@ skipping 1198 matching lines @@
 }
 
 void PrerenderManager::RenderProcessHostDestroyed(
     content::RenderProcessHost* host) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   size_t erased = prerender_process_hosts_.erase(host);
   DCHECK_EQ(1u, erased);
 }
 
 }  // namespace prerender