Implement visited link coloring.

webkit/tools/test_shell/test_shell.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 "webkit/tools/test_shell/test_shell.h"
 
 #include "base/command_line.h"
 #include "base/debug_on_start.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
@@ skipping 542 matching lines @@
 }
 
 bool IsDefaultPluginEnabled() {
   return false;
 }
 
 std::wstring GetWebKitLocale() {
   return L"en-US";
 }
 
+uint64 webkit_glue::VisitedLinkHash(const char* canonical_url, size_t length) {
+  return 0;
+}
+
+bool webkit_glue::IsLinkVisited(uint64 link_hash) {
+  return false;
+}
+
 }  // namespace webkit_glue