Move the Pepper implementation from webkit/glue/plugins/pepper_* to...

webkit/plugins/ppapi/error_util.h

 // Copyright (c) 2010 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 WEBKIT_GLUE_PLUGINS_PEPPER_ERROR_UTIL_H_
-#define WEBKIT_GLUE_PLUGINS_PEPPER_ERROR_UTIL_H_
+#ifndef WEBKIT_PLUGINS_PPAPI_ERROR_UTIL_H_
+#define WEBKIT_PLUGINS_PPAPI_ERROR_UTIL_H_
 
 #include "base/platform_file.h"
 
-namespace pepper {
+namespace webkit {
+namespace plugins {
+namespace ppapi {
 
 int PlatformFileErrorToPepperError(base::PlatformFileError error_code);
 
-}  // namespace pepper
+}  // namespace ppapi
+}  // namespace plugins
+}  // namespace webkit
 
-#endif  // WEBKIT_GLUE_PLUGINS_PEPPER_ERROR_UTIL_H_
+#endif  // WEBKIT_PLUGINS_PPAPI_ERROR_UTIL_H_