Add a printing resource (as a new style resource) to fetch the default print settings

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 a31386bc6739d5e77f8c6f7e5976effc1f0f7db0..f24f86a1d1a0db36f2691b33d322a9daaa120455 100644
--- a/ppapi/proxy/resource_creation_proxy.cc
+++ b/ppapi/proxy/resource_creation_proxy.cc
@@ -37,6 +37,7 @@
 #include "ppapi/proxy/ppb_video_capture_proxy.h"
 #include "ppapi/proxy/ppb_video_decoder_proxy.h"
 #include "ppapi/proxy/ppb_x509_certificate_private_proxy.h"
+#include "ppapi/proxy/printing_resource.h"
 #include "ppapi/shared_impl/api_id.h"
 #include "ppapi/shared_impl/host_resource.h"
 #include "ppapi/shared_impl/ppb_audio_config_shared.h"
@@ -324,6 +325,10 @@ PP_Resource ResourceCreationProxy::CreateNetworkMonitor(
       instance, callback, user_data);
 }
 
+PP_Resource ResourceCreationProxy::CreatePrinting(PP_Instance instance) {
+  return (new PrintingResource(GetConnection(), instance))->GetReference();
+}
+
 PP_Resource ResourceCreationProxy::CreateScrollbar(PP_Instance instance,
                                                    PP_Bool vertical) {
   NOTIMPLEMENTED();  // Not proxied yet.