ppapi: Remove use of ALLOW_THIS_IN_INITIALIZER_LIST.

ppapi/proxy/audio_input_resource.cc

 // 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.
 
 #include "ppapi/proxy/audio_input_resource.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "ipc/ipc_platform_file.h"
 #include "media/audio/audio_parameters.h"
@@ skipping 13 matching lines @@
 
 AudioInputResource::AudioInputResource(
     Connection connection,
     PP_Instance instance)
     : PluginResource(connection, instance),
       open_state_(BEFORE_OPEN),
       capturing_(false),
       shared_memory_size_(0),
       audio_input_callback_(NULL),
       user_data_(NULL),
-      ALLOW_THIS_IN_INITIALIZER_LIST(enumeration_helper_(this)) {
+      enumeration_helper_(this) {
   SendCreate(RENDERER, PpapiHostMsg_AudioInput_Create());
 }
 
 AudioInputResource::~AudioInputResource() {
   Close();
 }
 
 thunk::PPB_AudioInput_API* AudioInputResource::AsPPB_AudioInput_API() {
   return this;
 }
@@ skipping 225 matching lines @@
     // While closing the stream, we may receive buffers whose size is different
     // from |data_buffer_size|.
     CHECK_LE(buffer->params.size, data_buffer_size);
     if (buffer->params.size > 0)
       audio_input_callback_(&buffer->audio[0], buffer->params.size, user_data_);
   }
 }
 
 }  // namespace proxy
 }  // namespace ppapi