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

webkit/glue/plugins/webplugin_audio_device_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_audio_device_delegate.h"
+#include "webkit/glue/plugins/webplugin_audio_device_delegate.h"
 
-namespace webkit {
-namespace npapi {
+namespace webkit_glue {
 
 NPError WebPluginAudioDeviceDelegate::DeviceAudioQueryCapability(
     int32 capability, int32* value) {
   return NPERR_GENERIC_ERROR;
 }
 
 NPError WebPluginAudioDeviceDelegate::DeviceAudioQueryConfig(
     const NPDeviceContextAudioConfig* request,
     NPDeviceContextAudioConfig* obtain) {
   return NPERR_GENERIC_ERROR;
@@ skipping 21 matching lines @@
     NPP id, NPDeviceContextAudio* context,
     NPDeviceFlushContextCallbackPtr callback, void* user_data) {
   return NPERR_GENERIC_ERROR;
 }
 
 NPError WebPluginAudioDeviceDelegate::DeviceAudioDestroyContext(
     NPDeviceContextAudio* context) {
   return NPERR_GENERIC_ERROR;
 }
 
-}  // namespace npapi
-}  // namespace webkit
+
+}  // namespace webkit_glue