Clean up URL test string conversions.

url/url_test_utils.h

 // Copyright 2013 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.
 
 #ifndef URL_URL_TEST_UTILS_H_
 #define URL_URL_TEST_UTILS_H_
 
 // Convenience functions for string conversions.
 // These are mostly intended for use in unit tests.
 
 #include <string>
 
 #include "base/strings/string16.h"
+#include "base/strings/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/url_canon_internal.h"
 
 namespace url {
 
 namespace test_utils {
 
-// Converts a UTF-16 string from native wchar_t format to char16, by
-// truncating the high 32 bits. This is not meant to handle true UTF-32
-// encoded strings.
-inline base::string16 WStringToUTF16(const wchar_t* src) {
+// Converts a UTF-16 string from native wchar_t format to char16 by
+// truncating the high 32 bits. This is different than the conversion function
+// in base bacause it passes invalid UTF-16 characters which is important for
+// test purposes. As a result, this is not meant to handle true UTF-32 encoded
+// strings.
+inline base::string16 TruncateWStringToUTF16(const wchar_t* src) {
   base::string16 str;
   int length = static_cast<int>(wcslen(src));
   for (int i = 0; i < length; ++i) {
     str.push_back(static_cast<base::char16>(src[i]));
   }
   return str;
 }
 
-// Converts a string from UTF-8 to UTF-16.
-inline base::string16 ConvertUTF8ToUTF16(const std::string& src) {
-  int length = static_cast<int>(src.length());
-  EXPECT_LT(length, 1024);
-  RawCanonOutputW<1024> output;
-  EXPECT_TRUE(ConvertUTF8ToUTF16(src.data(), length, &output));
-  return base::string16(output.data(), output.length());
-}
-
-// Converts a string from UTF-16 to UTF-8.
-inline std::string ConvertUTF16ToUTF8(const base::string16& src) {
-  std::string str;
-  StdStringCanonOutput output(&str);
-  EXPECT_TRUE(ConvertUTF16ToUTF8(src.data(), static_cast<int>(src.length()),
-                                 &output));
-  output.Complete();
-  return str;
-}
-
 }  // namespace test_utils
 
 }  // namespace url
 
 #endif  // URL_URL_TEST_UTILS_H_