Fix some bugs with incorrect ! (both missing and extra) in the proxy error ha...

ppapi/proxy/ppapi_param_traits.h

Index: ppapi/proxy/ppapi_param_traits.h
===================================================================
--- ppapi/proxy/ppapi_param_traits.h	(revision 72880)
+++ ppapi/proxy/ppapi_param_traits.h	(working copy)
@@ -18,7 +18,6 @@
 namespace pp {
 namespace proxy {
 
-struct PPBAudio_NotifyAudioStreamCreated_Params;
 struct PPBFlash_DrawGlyphs_Params;
 struct PPBFont_DrawTextAt_Params;
 struct PPBURLLoader_UpdateProgress_Params;
@@ -88,14 +87,6 @@
   static void Log(const param_type& p, std::string* l);
 };
 
-template<> struct ParamTraits<
-    pp::proxy::PPBAudio_NotifyAudioStreamCreated_Params> {
-  typedef pp::proxy::PPBAudio_NotifyAudioStreamCreated_Params param_type;
-  static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, void** iter, param_type* r);
-  static void Log(const param_type& p, std::string* l);
-};
-
 template<>
 struct ParamTraits<pp::proxy::PPBFlash_DrawGlyphs_Params> {
   typedef pp::proxy::PPBFlash_DrawGlyphs_Params param_type;