Use builders to convert between WebKit and content IDB types

content/common/indexed_db/indexed_db_key_path.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 "content/common/indexed_db/indexed_db_key_path.h"
 
 #include "base/logging.h"
-#include "third_party/WebKit/public/platform/WebString.h"
-#include "third_party/WebKit/public/platform/WebVector.h"
 
 namespace content {
 
-using WebKit::WebIDBKeyPath;
 using WebKit::WebIDBKeyPathTypeArray;
 using WebKit::WebIDBKeyPathTypeNull;
 using WebKit::WebIDBKeyPathTypeString;
-using WebKit::WebString;
-using WebKit::WebVector;
-
-namespace {
-static std::vector<string16> CopyArray(const WebVector<WebString>& array) {
-  std::vector<string16> copy(array.size());
-  for (size_t i = 0; i < array.size(); ++i)
-    copy[i] = array[i];
-  return copy;
-}
-}  // namespace
 
 IndexedDBKeyPath::IndexedDBKeyPath() : type_(WebIDBKeyPathTypeNull) {}
 
 IndexedDBKeyPath::IndexedDBKeyPath(const string16& string)
     : type_(WebIDBKeyPathTypeString), string_(string) {}
 
 IndexedDBKeyPath::IndexedDBKeyPath(const std::vector<string16>& array)
     : type_(WebIDBKeyPathTypeArray), array_(array) {}
 
-IndexedDBKeyPath::IndexedDBKeyPath(const WebIDBKeyPath& other)
-    : type_(other.keyPathType()),
-      string_(type_ == WebIDBKeyPathTypeString
-              ? static_cast<string16>(other.string()) : string16()),
-      array_(type_ == WebIDBKeyPathTypeArray
-             ? CopyArray(other.array()) : std::vector<string16>()) {}
-
 IndexedDBKeyPath::~IndexedDBKeyPath() {}
 
-bool IndexedDBKeyPath::IsValid() const {
-  WebIDBKeyPath key_path = *this;
-  return key_path.isValid();
-}
-
 const std::vector<string16>& IndexedDBKeyPath::array() const {
   DCHECK(type_ == WebKit::WebIDBKeyPathTypeArray);
   return array_;
 }
 
 const string16& IndexedDBKeyPath::string() const {
   DCHECK(type_ == WebKit::WebIDBKeyPathTypeString);
   return string_;
 }
 
 bool IndexedDBKeyPath::operator==(const IndexedDBKeyPath& other) const {
   if (type_ != other.type_)
     return false;
 
   switch (type_) {
     case WebIDBKeyPathTypeNull:
       return true;
     case WebIDBKeyPathTypeString:
       return string_ == other.string_;
     case WebIDBKeyPathTypeArray:
       return array_ == other.array_;
   }
   NOTREACHED();
   return false;
 }
 
-IndexedDBKeyPath::operator WebIDBKeyPath() const {
-  switch (type_) {
-    case WebIDBKeyPathTypeArray:
-      return WebIDBKeyPath::create(array_);
-    case WebIDBKeyPathTypeString:
-      return WebIDBKeyPath::create(WebString(string_));
-    case WebIDBKeyPathTypeNull:
-      return WebIDBKeyPath::createNull();
-  }
-  NOTREACHED();
-  return WebIDBKeyPath::createNull();
-}
-
 }  // namespace content