Pepper: Autogenerate thunk for PPB_Graphics2D.

ppapi/proxy/resource_creation_proxy.cc

Index: ppapi/proxy/resource_creation_proxy.cc
diff --git a/ppapi/proxy/resource_creation_proxy.cc b/ppapi/proxy/resource_creation_proxy.cc
index 74f907cf571f9133671860a05262e7a54a2ea434..3cb25fa352727cd1a85e883e122698dbf417ed78 100644
--- a/ppapi/proxy/resource_creation_proxy.cc
+++ b/ppapi/proxy/resource_creation_proxy.cc
@@ -225,9 +225,9 @@ PP_Resource ResourceCreationProxy::CreateFileChooser(
 }
 
 PP_Resource ResourceCreationProxy::CreateGraphics2D(PP_Instance instance,
-                                                    const PP_Size& size,
+                                                    const PP_Size* size,
                                                     PP_Bool is_always_opaque) {
-  return (new Graphics2DResource(GetConnection(), instance, size,
+  return (new Graphics2DResource(GetConnection(), instance, *size,
                                  is_always_opaque))->GetReference();
 }