Support sideloaded fonts via command line option for blink layout_tests

content/shell/common/webkit_test_helpers.h

 // 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.
 
 #ifndef CONTENT_SHELL_COMMON_WEBKIT_TEST_HELPERS_H_
 #define CONTENT_SHELL_COMMON_WEBKIT_TEST_HELPERS_H_
 
+#include <string>
+#include <vector>
+
 struct WebPreferences;
 
 namespace base {
 class FilePath;
 }
 
 struct WebPreferences;
 
 namespace content {
 
 struct TestPreferences;
 
 // The TestRunner library keeps its settings in a WebTestRunner::WebPreferenes
 // object. The content_shell, however, uses WebPreferences. This
 // method exports the settings from the WebTestRunner library which are relevant
 // for layout tests.
 void ExportLayoutTestSpecificPreferences(
     const TestPreferences& from, WebPreferences* to);
 
 // Applies settings that differ between layout tests and regular mode.
 void ApplyLayoutTestDefaultPreferences(WebPreferences* prefs);
 
 // Returns the root of the Blink checkout.
 base::FilePath GetWebKitRootDirFilePath();
 
+// Returns list of extra font files to be made accessible to the renderer.
+std::vector<std::string> GetSideloadFontFiles();
+
 }  // namespace content
 
 #endif  // CONTENT_SHELL_COMMON_WEBKIT_TEST_HELPERS_H_