Update PPAPI IDL generator to define versioned structs, and unversioned typedef.

webkit/plugins/ppapi/ppapi_plugin_instance.cc

Index: webkit/plugins/ppapi/ppapi_plugin_instance.cc
diff --git a/webkit/plugins/ppapi/ppapi_plugin_instance.cc b/webkit/plugins/ppapi/ppapi_plugin_instance.cc
index 8f1ff5dac9064385a385f0036d89c6ab9a67b853..5168d1a090b02e300226ee950bf11f9371db20dd 100644
--- a/webkit/plugins/ppapi/ppapi_plugin_instance.cc
+++ b/webkit/plugins/ppapi/ppapi_plugin_instance.cc
@@ -956,7 +956,7 @@ bool PluginInstance::LoadMessagingInterface() {
     checked_for_plugin_messaging_interface_ = true;
     plugin_messaging_interface_ =
         static_cast<const PPP_Messaging*>(module_->GetPluginInterface(
-            PPP_MESSAGING_INTERFACE_1_0));
+            PPP_MESSAGING_INTERFACE));
   }
   return !!plugin_messaging_interface_;
 }
@@ -974,8 +974,8 @@ bool PluginInstance::LoadMouseLockInterface() {
 bool PluginInstance::LoadPdfInterface() {
   if (!plugin_pdf_interface_) {
     plugin_pdf_interface_ =
-        static_cast<const PPP_Pdf*>(module_->GetPluginInterface(
-            PPP_PDF_INTERFACE));
+        static_cast<const PPP_Pdf_1*>(module_->GetPluginInterface(
+            PPP_PDF_INTERFACE_1));
   }
 
   return !!plugin_pdf_interface_;