win: Ref-counted classes should have non-public destructors.

win8/viewer/metro_viewer_process_host.cc

 // Copyright (c) 2013 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 "win8/viewer/metro_viewer_process_host.h"
 
 #include <shlobj.h>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 27 matching lines @@
 MetroViewerProcessHost::InternalMessageFilter::InternalMessageFilter(
     MetroViewerProcessHost* owner)
     : owner_(owner) {
 }
 
 void MetroViewerProcessHost::InternalMessageFilter::OnChannelConnected(
     int32 peer_pid) {
   owner_->NotifyChannelConnected();
 }
 
+MetroViewerProcessHost::InternalMessageFilter::~InternalMessageFilter() {
+}
+
 MetroViewerProcessHost::MetroViewerProcessHost(
     const scoped_refptr<base::SingleThreadTaskRunner>& ipc_task_runner) {
   DCHECK(!instance_);
   instance_ = this;
 
   channel_ = IPC::ChannelProxy::Create(kMetroViewerIPCChannelName,
                                        IPC::Channel::MODE_NAMED_SERVER,
                                        this,
                                        ipc_task_runner);
 }
@@ skipping 275 matching lines @@
     const base::FilePath& folder) {
   if (success)
     select_folder_completion_callback_.Run(base::FilePath(folder), 0, NULL);
   else
     failure_callback_.Run(NULL);
   select_folder_completion_callback_.Reset();
   failure_callback_.Reset();
 }
 
 }  // namespace win8