content: Rename webkit_test_helpers.{cc,h} to blink_test_helpers.{cc,h}

content/shell/renderer/layout_test/blink_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_
+#ifndef CONTENT_SHELL_RENDERER_LAYOUT_TEST_BLINK_TEST_HELPERS_H_
+#define CONTENT_SHELL_RENDERER_LAYOUT_TEST_BLINK_TEST_HELPERS_H_
 
 #include <string>
 #include <vector>
 
 namespace base {
 class FilePath;
 }
 
 namespace content {
 
@@ skipping 10 matching lines @@
 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_
+#endif  // CONTENT_SHELL_RENDERER_LAYOUT_TEST_BLINK_TEST_HELPERS_H_