Remove unused ThumbnailDatabase::UpdateIconMapping() and ThumbnailDatabase::CloneIconMappings()

components/history/core/browser/thumbnail_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/history/core/browser/thumbnail_database.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 1017 matching lines @@
   sql::Statement statement(db_.GetCachedStatement(SQL_FROM_HERE, kSql));
   statement.BindString(0, URLDatabase::GURLToDatabaseURL(page_url));
   statement.BindInt64(1, icon_id);
 
   if (!statement.Run())
     return 0;
 
   return db_.GetLastInsertRowId();
 }
 
-bool ThumbnailDatabase::UpdateIconMapping(IconMappingID mapping_id,
-                                          favicon_base::FaviconID icon_id) {
-  sql::Statement statement(db_.GetCachedStatement(SQL_FROM_HERE,
-      "UPDATE icon_mapping SET icon_id=? WHERE id=?"));
-  statement.BindInt64(0, icon_id);
-  statement.BindInt64(1, mapping_id);
-
-  return statement.Run();
-}
-
 bool ThumbnailDatabase::DeleteIconMappings(const GURL& page_url) {
   sql::Statement statement(db_.GetCachedStatement(SQL_FROM_HERE,
       "DELETE FROM icon_mapping WHERE page_url = ?"));
   statement.BindString(0, URLDatabase::GURLToDatabaseURL(page_url));
 
   return statement.Run();
 }
 
 bool ThumbnailDatabase::DeleteIconMapping(IconMappingID mapping_id) {
   sql::Statement statement(db_.GetCachedStatement(SQL_FROM_HERE,
       "DELETE FROM icon_mapping WHERE id=?"));
   statement.BindInt64(0, mapping_id);
 
   return statement.Run();
 }
 
 bool ThumbnailDatabase::HasMappingFor(favicon_base::FaviconID id) {
   sql::Statement statement(db_.GetCachedStatement(SQL_FROM_HERE,
       "SELECT id FROM icon_mapping "
       "WHERE icon_id=?"));
   statement.BindInt64(0, id);
 
   return statement.Step();
 }
 
-bool ThumbnailDatabase::CloneIconMappings(const GURL& old_page_url,
-                                          const GURL& new_page_url) {
-  sql::Statement statement(db_.GetCachedStatement(SQL_FROM_HERE,
-      "SELECT icon_id FROM icon_mapping "
-      "WHERE page_url=?"));
-  if (!statement.is_valid())
-    return false;
-
-  // Do nothing if there are existing bindings
-  statement.BindString(0, URLDatabase::GURLToDatabaseURL(new_page_url));
-  if (statement.Step())
-    return true;
-
-  statement.Assign(db_.GetCachedStatement(SQL_FROM_HERE,
-      "INSERT INTO icon_mapping (page_url, icon_id) "
-        "SELECT ?, icon_id FROM icon_mapping "
-        "WHERE page_url = ?"));
-
-  statement.BindString(0, URLDatabase::GURLToDatabaseURL(new_page_url));
-  statement.BindString(1, URLDatabase::GURLToDatabaseURL(old_page_url));
-  return statement.Run();
-}
-
 bool ThumbnailDatabase::InitIconMappingEnumerator(
     favicon_base::IconType type,
     IconMappingEnumerator* enumerator) {
   DCHECK(!enumerator->statement_.is_valid());
   enumerator->statement_.Assign(db_.GetCachedStatement(
       SQL_FROM_HERE,
       "SELECT icon_mapping.id, icon_mapping.icon_id, favicons.icon_type, "
              "favicons.url, icon_mapping.page_url "
          "FROM icon_mapping JOIN favicons ON ("
               "icon_mapping.icon_id = favicons.id) "
@@ skipping 299 matching lines @@
   meta_table_.SetVersionNumber(8);
   meta_table_.SetCompatibleVersionNumber(std::min(8, kCompatibleVersionNumber));
   return true;
 }
 
 bool ThumbnailDatabase::IsFaviconDBStructureIncorrect() {
   return !db_.IsSQLValid("SELECT id, url, icon_type FROM favicons");
 }
 
 }  // namespace history