Handle interface to prerenders.

chrome/browser/autocomplete/autocomplete_match.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_AUTOCOMPLETE_AUTOCOMPLETE_MATCH_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_MATCH_H_
 #pragma once
 
 #include <vector>
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
+#include "chrome/browser/prerender/prerender_handle.h"
 #include "content/public/common/page_transition_types.h"
 #include "googleurl/src/gurl.h"
 
 class AutocompleteProvider;
 class Profile;
 class TemplateURL;
 
 // AutocompleteMatch ----------------------------------------------------------
 
 // A single result line with classified spans.  The autocomplete popup displays
@@ skipping 244 matching lines @@
   // accesses it must perform any necessary sanity checks before blindly using
   // it!
   string16 keyword;
 
   // True if the user has starred the destination URL.
   bool starred;
 
   // True if this match is from a previous result.
   bool from_previous;
 
+  // The prerender (if any) associated with this match.
+  mutable prerender::WeakPrerenderHandle prerender;

[dominich, 2012/06/18 15:32:44]

I thought we discussed this at length and decided that adding the prerender to
the AutocompleteMatch was a bad idea. The handle should be stored by the
AutocompletePredictor when it starts the prerender, not by the autocomplete
system.

At least, that's how I expect it to be. If you have good reason to change that
approach please let me know.

The requirement for mutable also suggests to me that this is not the best place
for it.

+
 #ifndef NDEBUG
   // Does a data integrity check on this match.
   void Validate() const;
 
   // Checks one text/classifications pair for valid values.
   void ValidateClassifications(
       const string16& text,
       const ACMatchClassifications& classifications) const;
 #endif
 };
 
 typedef AutocompleteMatch::ACMatchClassification ACMatchClassification;
 typedef std::vector<ACMatchClassification> ACMatchClassifications;
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_MATCH_H_