Add a private PPB_Talk_Private interface.

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 75c41bdbfdd4c1fbf045a2f2c7c1c1e33b041d29..456ebb77e1da97735148f8ab50cbb8e732922c4d 100644
--- a/ppapi/proxy/resource_creation_proxy.cc
+++ b/ppapi/proxy/resource_creation_proxy.cc
@@ -24,6 +24,7 @@
 #include "ppapi/proxy/ppb_graphics_2d_proxy.h"
 #include "ppapi/proxy/ppb_graphics_3d_proxy.h"
 #include "ppapi/proxy/ppb_image_data_proxy.h"
+#include "ppapi/proxy/ppb_talk_private_proxy.h"
 #include "ppapi/proxy/ppb_tcp_socket_private_proxy.h"
 #include "ppapi/proxy/ppb_udp_socket_private_proxy.h"
 #include "ppapi/proxy/ppb_url_loader_proxy.h"
@@ -277,6 +278,10 @@ PP_Resource ResourceCreationProxy::CreateScrollbar(PP_Instance instance,
   return 0;
 }
 
+PP_Resource ResourceCreationProxy::CreateTalk(PP_Instance instance) {
+  return PPB_Talk_Private_Proxy::CreateProxyResource(instance);
+}
+
 #if !defined(OS_NACL)
 PP_Resource ResourceCreationProxy::CreateTCPServerSocketPrivate(
     PP_Instance instance) {