Cull autofill entries older than 60 days.

chrome/browser/webdata/autofill_entry.h

Index: chrome/browser/webdata/autofill_entry.h
diff --git a/chrome/browser/webdata/autofill_entry.h b/chrome/browser/webdata/autofill_entry.h
index 8aae993ffd4b31747f5efc661195aca03581e7ff..47f5e3f7bbc801de9ecd9b76e2fee81976ad5496 100644
--- a/chrome/browser/webdata/autofill_entry.h
+++ b/chrome/browser/webdata/autofill_entry.h
@@ -46,14 +46,19 @@ class AutofillEntry {
 
   bool timestamps_culled() const { return timestamps_culled_; }
 
+  // Checks if last of the timestamps are older than |time|.
+  bool LastAccessOlder(base::Time time) const;
+
+  // The period after which Autofill entries should expire in days.
+  static const int64 kExpirationPeriodInDays = 60;
+
  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.
+  // Culls the list of timestamps to 2 - the first and last used. This is a

[Ilya Sherman, 2012/03/15 21:00:41]

nit: Perhaps "first and last used" -> "oldest and most recent"?

[GeorgeY, 2012/03/17 00:36:16]

Done.

+  // precursor to getting rid of the timestamps db altogether.

[Ilya Sherman, 2012/03/15 21:00:41]

If you plan to remove the timestamps db in a separate CL, please file a bug to
track that work, so that it doesn't get lost.

[GeorgeY, 2012/03/17 00:36:16]

Done.

   static bool CullTimeStamps(const std::vector<base::Time>& source,
                              std::vector<base::Time>* result);
 
@@ -62,6 +67,4 @@ class AutofillEntry {
   bool timestamps_culled_;
 };
 
-// TODO(lipalani): Move this inside the class defintion.
-const unsigned int kMaxAutofillTimeStamps = 50;
 #endif  // CHROME_BROWSER_WEBDATA_AUTOFILL_ENTRY_H__