Prerender/Instant interopability.

chrome/browser/instant/instant_loader_delegate.h

 // Copyright (c) 2011 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_INSTANT_INSTANT_LOADER_DELEGATE_H_
 #define CHROME_BROWSER_INSTANT_INSTANT_LOADER_DELEGATE_H_
 #pragma once
 
 #include "base/string16.h"
 #include "chrome/common/instant_types.h"
@@ skipping 27 matching lines @@
   // Invoked when the the loader should be committed.
   virtual void CommitInstantLoader(InstantLoader* loader) = 0;
 
   // Invoked if the loader was created with the intention that the site supports
   // instant, but it turned out the site doesn't support instant.
   virtual void InstantLoaderDoesntSupportInstant(InstantLoader* loader) = 0;
 
   // Adds the specified url to the set of urls instant won't prefetch for.
   virtual void AddToBlacklist(InstantLoader* loader, const GURL& url) = 0;
 
+  // Invoked if the loader swaps to a different TabContents.
+  virtual void SwappedTabContents(InstantLoader* loader) = 0;
+
  protected:
   virtual ~InstantLoaderDelegate() {}
 };
 
 #endif  // CHROME_BROWSER_INSTANT_INSTANT_LOADER_DELEGATE_H_