Remove PluginDelegate completely. In a followup I'll rename PepperPluginDelegateImpl to something c…

content/renderer/pepper/ppb_tcp_socket_private_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/pepper/ppb_tcp_socket_private_impl.h"
 
 #include "content/common/pepper_messages.h"
 #include "content/renderer/pepper/host_globals.h"
 #include "content/renderer/pepper/pepper_plugin_delegate_impl.h"
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
@@ skipping 120 matching lines @@
   plugin_delegate->Send(new PpapiHostMsg_PPBTCPSocket_SetOption(
       socket_id_, name, value));
 }
 
 PepperPluginDelegateImpl* PPB_TCPSocket_Private_Impl::GetPluginDelegate(
     PP_Instance instance) {
   PepperPluginInstanceImpl* plugin_instance =
       HostGlobals::Get()->GetInstance(instance);
   if (!plugin_instance)
     return NULL;
-  return static_cast<PepperPluginDelegateImpl*>(plugin_instance->delegate());
+  return plugin_instance->delegate();
 }
 
 }  // namespace content