Add Pepper TrueType font API plumbing.

ppapi/proxy/ppapi_param_traits.h

Index: ppapi/proxy/ppapi_param_traits.h
diff --git a/ppapi/proxy/ppapi_param_traits.h b/ppapi/proxy/ppapi_param_traits.h
index 7556e35856ae8c15e2799210e529f1c4d333cd5f..38ec6f37b9bbc4582f3d98182facc39355accfb4 100644
--- a/ppapi/proxy/ppapi_param_traits.h
+++ b/ppapi/proxy/ppapi_param_traits.h
@@ -33,6 +33,7 @@ struct PPBFlash_DrawGlyphs_Params;
 struct PPBURLLoader_UpdateProgress_Params;
 struct SerializedDirEntry;
 struct SerializedFontDescription;
+struct SerializedTrueTypeFontDesc;
 class SerializedFlashMenu;
 class SerializedHandle;
 class SerializedVar;
@@ -117,6 +118,15 @@ struct PPAPI_PROXY_EXPORT ParamTraits<ppapi::proxy::SerializedFontDescription> {
 };
 
 template<>
+struct PPAPI_PROXY_EXPORT
+    ParamTraits<ppapi::proxy::SerializedTrueTypeFontDesc> {
+  typedef ppapi::proxy::SerializedTrueTypeFontDesc param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static void Log(const param_type& p, std::string* l);
+};
+
+template<>
 struct PPAPI_PROXY_EXPORT ParamTraits<ppapi::proxy::SerializedHandle> {
   typedef ppapi::proxy::SerializedHandle param_type;
   static void Write(Message* m, const param_type& p);