Finish taking out render_messages.h include from other headers.

chrome/renderer/webplugin_delegate_proxy.cc

 // Copyright (c) 2006-2008 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 "chrome/renderer/webplugin_delegate_proxy.h"
 
 #include <atlbase.h>
 
 #include "generated_resources.h"
 
 #include "base/logging.h"
 #include "base/ref_counted.h"
 #include "base/string_util.h"
 #include "base/gfx/size.h"
 #include "base/gfx/native_widget_types.h"
 
 #include "chrome/app/chrome_dll_resource.h"
 #include "chrome/common/gfx/chrome_canvas.h"
 #include "chrome/common/gfx/emf.h"
 #include "chrome/common/l10n_util.h"
 #include "chrome/common/plugin_messages.h"
+#include "chrome/common/render_messages.h"
 #include "chrome/common/resource_bundle.h"
 #include "chrome/common/win_util.h"
 #include "chrome/plugin/npobject_proxy.h"
 #include "chrome/plugin/npobject_stub.h"
 #include "chrome/renderer/render_thread.h"
 #include "chrome/renderer/render_view.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/mime_util.h"
 #include "webkit/glue/glue_util.h"
 #include "webkit/glue/webframe.h"
@@ skipping 721 matching lines @@
   plugin_->CancelDocumentLoad();
 }
 
 void WebPluginDelegateProxy::OnInitiateHTTPRangeRequest(
    const std::string& url, const std::string& range_info,
    HANDLE existing_stream, bool notify_needed, HANDLE notify_data) {
   plugin_->InitiateHTTPRangeRequest(url.c_str(), range_info.c_str(),
                                     existing_stream, notify_needed,
                                     notify_data);
 }