Fix IPC logging on Windows.

content/renderer/plugin_channel_host.cc

 // Copyright (c) 2011 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/plugin_channel_host.h"
 
 #include "content/common/child_process.h"
 #include "content/common/npobject_base.h"
 #include "content/common/plugin_messages.h"
 
@@ skipping 116 matching lines @@
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   DCHECK(handled);
   return handled;
 }
 
 void PluginChannelHost::OnSetException(const std::string& message) {
   WebKit::WebBindings::setException(NULL, message.c_str());
 }
 
-void PluginChannelHost::OnPluginShuttingDown(const IPC::Message& message) {
+void PluginChannelHost::OnPluginShuttingDown() {
   expecting_shutdown_ = true;
 }
 
 void PluginChannelHost::OnChannelError() {
   NPChannelBase::OnChannelError();
 
   for (ProxyMap::iterator iter = proxies_.begin();
        iter != proxies_.end(); iter++) {
     iter->second->OnChannelError();
   }
 
   proxies_.clear();
 }