Move audio messages to their own file.

chrome/common/render_messages.cc

Index: chrome/common/render_messages.cc
===================================================================
--- chrome/common/render_messages.cc	(revision 78894)
+++ chrome/common/render_messages.cc	(working copy)
@@ -714,29 +714,4 @@
   l->append(")");
 }
 
-void ParamTraits<AudioBuffersState>::Write(Message* m, const param_type& p) {
-  WriteParam(m, p.pending_bytes);
-  WriteParam(m, p.hardware_delay_bytes);
-  WriteParam(m, p.timestamp);
-}
-
-bool ParamTraits<AudioBuffersState>::Read(const Message* m,
-                                    void** iter,
-                                    param_type* p) {
-  return
-      ReadParam(m, iter, &p->pending_bytes) &&
-      ReadParam(m, iter, &p->hardware_delay_bytes) &&
-      ReadParam(m, iter, &p->timestamp);
-}
-
-void ParamTraits<AudioBuffersState>::Log(const param_type& p, std::string* l) {
-  l->append("(");
-  LogParam(p.pending_bytes, l);
-  l->append(", ");
-  LogParam(p.hardware_delay_bytes, l);
-  l->append(", ");
-  LogParam(p.timestamp, l);
-  l->append(")");
-}
-
 }  // namespace IPC