Reorder AudioMessageFilter shutdown. Remove spammy DCHECK.

content/renderer/render_thread_impl.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 "content/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <vector>
@@ skipping 598 matching lines @@
 
   // Shutdown in reverse of the initialization order.
   if (devtools_agent_message_filter_.get()) {
     RemoveFilter(devtools_agent_message_filter_.get());
     devtools_agent_message_filter_ = NULL;
   }
 
   RemoveFilter(audio_input_message_filter_.get());
   audio_input_message_filter_ = NULL;
 
-  RemoveFilter(audio_message_filter_.get());
-  audio_message_filter_ = NULL;
-
 #if defined(ENABLE_WEBRTC)
   RTCPeerConnectionHandler::DestructAllHandlers();
 
   peer_connection_factory_.reset();
 #endif
   RemoveFilter(vc_manager_->video_capture_message_filter());
   vc_manager_.reset();
 
   RemoveFilter(db_message_filter_.get());
   db_message_filter_ = NULL;
 
   // Shutdown the file thread if it's running.
   if (file_thread_)
     file_thread_->Stop();
 
   if (compositor_output_surface_filter_.get()) {
     RemoveFilter(compositor_output_surface_filter_.get());
     compositor_output_surface_filter_ = NULL;
   }
 
   media_thread_.reset();
+
+  // AudioMessageFilter may be accessed on |media_thread_|, so shutdown after.
+  RemoveFilter(audio_message_filter_.get());
+  audio_message_filter_ = NULL;
+
   compositor_thread_.reset();
   input_handler_manager_.reset();
   if (input_event_filter_.get()) {
     RemoveFilter(input_event_filter_.get());
     input_event_filter_ = NULL;
   }
 
   // RemoveEmbeddedWorkerRoute may be called while deleting
   // EmbeddedWorkerDispatcher. So it must be deleted before deleting
   // RenderThreadImpl.
@@ skipping 991 matching lines @@
   hidden_widget_count_--;
 
   if (!GetContentClient()->renderer()->RunIdleHandlerWhenWidgetsHidden()) {
     return;
   }
 
   ScheduleIdleHandler(kLongIdleHandlerDelayMs);
 }
 
 }  // namespace content