Fix Acid3 Test 48: LINKTEST, Chromium side....

chrome/browser/history/history_database.cc

 // Copyright (c) 2006-2008 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/history/history_database.h"
 
 #include <algorithm>
 #include <set>
 
 #include "base/string_util.h"
 #include "chrome/common/sqlite_utils.h"
 
+using base::Time;
+
 namespace history {
 
 namespace {
 
 // Current version number.
 static const int kCurrentVersionNumber = 16;
 static const int kCompatibleVersionNumber = 16;
+static const char kEarlyExpirationThresholdKey[] = "early_expiration_threshold";
 
 }  // namespace
 
 HistoryDatabase::HistoryDatabase()
     : transaction_nesting_(0),
       db_(NULL) {
 }
 
 HistoryDatabase::~HistoryDatabase() {
 }
@@ skipping 134 matching lines @@
   s.bind_int64(0, visit_id);
   if (s.step() == SQLITE_ROW) {
     if (s.column_type(0) == SQLITE_NULL)
       return 0;
     else
       return s.column_int64(0);
   }
   return 0;
 }
 
+Time HistoryDatabase::GetEarlyExpirationThreshold() {
+  if (!cached_early_expiration_threshold_.is_null())
+    return cached_early_expiration_threshold_;
+
+  int64 threshold;
+  if (!meta_table_.GetValue(kEarlyExpirationThresholdKey, &threshold)) {
+    // Set to a very early non-zero time, so it's before all history, but not
+    // zero to avoid re-retrieval.
+    threshold = 1L;
+  }
+
+  cached_early_expiration_threshold_ = Time::FromInternalValue(threshold);
+  return cached_early_expiration_threshold_;
+}
+
+void HistoryDatabase::UpdateEarlyExpirationThreshold(Time threshold) {
+  meta_table_.SetValue(kEarlyExpirationThresholdKey,
+                       threshold.ToInternalValue());
+  cached_early_expiration_threshold_ = threshold;
+}
+
 sqlite3* HistoryDatabase::GetDB() {
   return db_;
 }
 
 SqliteStatementCache& HistoryDatabase::GetStatementCache() {
   return *statement_cache_;
 }
 
 // Migration -------------------------------------------------------------------
 
@@ skipping 29 matching lines @@
 
   // When the version is too old, we just try to continue anyway, there should
   // not be a released product that makes a database too old for us to handle.
   LOG_IF(WARNING, cur_version < kCurrentVersionNumber) <<
       "History database version " << cur_version << " is too old to handle.";
 
   return INIT_OK;
 }
 
 }  // namespace history