Don't persist and sync omnibox extension keywords.

components/webdata/common/web_database.cc

 // 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.
 
 #include "components/webdata/common/web_database.h"
 
 #include <algorithm>
 
 #include "base/stl_util.h"
 #include "sql/statement.h"
 #include "sql/transaction.h"
 
 // Current version number.  Note: when changing the current version number,
 // corresponding changes must happen in the unit tests, and new migration test
 // added.  See |WebDatabaseMigrationTest::kCurrentTestedVersionNumber|.
 // static
-const int WebDatabase::kCurrentVersionNumber = 58;
+const int WebDatabase::kCurrentVersionNumber = 59;
 
 namespace {
 
-const int kCompatibleVersionNumber = 58;
+const int kCompatibleVersionNumber = 59;
 
 // Change the version number and possibly the compatibility version of
 // |meta_table_|.
 void ChangeVersion(sql::MetaTable* meta_table,
                    int version_num,
                    bool update_compatible_version_num) {
   meta_table->SetVersionNumber(version_num);
   if (update_compatible_version_num) {
     meta_table->SetCompatibleVersionNumber(
           std::min(version_num, kCompatibleVersionNumber));
@@ skipping 160 matching lines @@
 
 bool WebDatabase::MigrateToVersion58DropWebAppsAndIntents() {
   sql::Transaction transaction(&db_);
   return transaction.Begin() &&
       db_.Execute("DROP TABLE IF EXISTS web_apps") &&
       db_.Execute("DROP TABLE IF EXISTS web_app_icons") &&
       db_.Execute("DROP TABLE IF EXISTS web_intents") &&
       db_.Execute("DROP TABLE IF EXISTS web_intents_defaults") &&
       transaction.Commit();
 }