Add PPAPI_BEGIN_MESSAGE_MAP and PPAPI_END_MESSAGE_MAP to be used when dispatching IPCs using PPAPI_…

ppapi/proxy/talk_resource.cc

Index: ppapi/proxy/talk_resource.cc
===================================================================
--- ppapi/proxy/talk_resource.cc	(revision 270145)
+++ ppapi/proxy/talk_resource.cc	(working copy)
@@ -78,13 +78,13 @@
 
 void TalkResource::OnReplyReceived(const ResourceMessageReplyParams& params,
                                    const IPC::Message& msg) {
-  IPC_BEGIN_MESSAGE_MAP(TalkResource, msg)
+  PPAPI_BEGIN_MESSAGE_MAP(TalkResource, msg)
     PPAPI_DISPATCH_PLUGIN_RESOURCE_CALL(
         PpapiPluginMsg_Talk_NotifyEvent,
         OnNotifyEvent)
     PPAPI_DISPATCH_PLUGIN_RESOURCE_CALL_UNHANDLED(
         PluginResource::OnReplyReceived(params, msg))
-  IPC_END_MESSAGE_MAP()
+  PPAPI_END_MESSAGE_MAP()
 }
 
 void TalkResource::OnNotifyEvent(const ResourceMessageReplyParams& params,