Revert "Move the NPAPI files from webkit/glue/plugins to webkit/plugins/npapi"

webkit/glue/plugins/webplugin_print_delegate.cc

 // 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.
 
-#include "webkit/plugins/npapi/webplugin_print_delegate.h"
+#include "webkit/glue/plugins/webplugin_print_delegate.h"
 
-namespace webkit {
-namespace npapi {
+namespace webkit_glue {
 
 bool WebPluginPrintDelegate::PrintSupportsPrintExtension() {
   return false;
 }
 
 int WebPluginPrintDelegate::PrintBegin(const gfx::Rect& printable_area,
                                        int printer_dpi) {
   return 0;
 }
 
 bool WebPluginPrintDelegate::PrintPage(int page_number,
                                        WebKit::WebCanvas* canvas) {
   return false;
 }
 
 void WebPluginPrintDelegate::PrintEnd() {
 }
 
-}  // namespace npapi
-}  // namespace webkit
+}  // namespace webkit_glue