Cull autofill entries older than 60 days.

chrome/browser/webdata/autofill_entry.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_WEBDATA_AUTOFILL_ENTRY_H__
 #define CHROME_BROWSER_WEBDATA_AUTOFILL_ENTRY_H__
 #pragma once
 
 #include <stddef.h>
 #include <vector>
@@ skipping 28 matching lines @@
   ~AutofillEntry();
 
   const AutofillKey& key() const { return key_; }
   const std::vector<base::Time>& timestamps() const { return timestamps_; }
 
   bool operator==(const AutofillEntry& entry) const;
   bool operator<(const AutofillEntry& entry) const;
 
   bool timestamps_culled() const { return timestamps_culled_; }
 
+  // Checks if any of the timestamps are older than |time|.
+  bool HasTimestampsOlder(base::Time time) const;
+
+  // Culls the |timestamps_| by expiring all prior to |expire_before|. Returns
+  // true if culling occured (and sets |timestamps_culled_|). Warning:
+  // |timestamps_| could become empty after this call.
+  bool CullExpiredTimeStamps(base::Time expire_before);
+
+  // The period after which Autofill entries should expire in days.
+  static const int64 kExpirationPeriodInDays = 60;

[Ilya Sherman, 2012/03/06 08:48:35]

nit: This should be defined wherever it is used, rather than here.

[GeorgeY, 2012/03/09 20:14:24]

It is used in two completely different places, this looks  like the correct
place to put it in.

+
  private:
   FRIEND_TEST_ALL_PREFIXES(AutofillEntryTest, NoCulling);
   FRIEND_TEST_ALL_PREFIXES(AutofillEntryTest, Culling);
+  FRIEND_TEST_ALL_PREFIXES(AutofillEntryTest, CullByTime);
 
   // Culls the list of timestamps to |kMaxAutofillTimeStamps| latest timestamps.
   // Result is stored in |result|. If the original vtor's size is less
   // than kMaxAutofillTimeStamps then false is returned. Otherwise true is
   // returned. Note: source and result should be DIFFERENT vectors.
   static bool CullTimeStamps(const std::vector<base::Time>& source,
                              std::vector<base::Time>* result);
 
   AutofillKey key_;
   std::vector<base::Time> timestamps_;
   bool timestamps_culled_;
 };
 
 // TODO(lipalani): Move this inside the class defintion.
 const unsigned int kMaxAutofillTimeStamps = 50;
 #endif  // CHROME_BROWSER_WEBDATA_AUTOFILL_ENTRY_H__