[PPAPI] It is now possible to pass filesystems from JavaScript to NaCl modules.

content/renderer/pepper/host_var_tracker.cc

Index: content/renderer/pepper/host_var_tracker.cc
diff --git a/content/renderer/pepper/host_var_tracker.cc b/content/renderer/pepper/host_var_tracker.cc
index ed67dbaa616b0487a2e512d407e0d5e68a4f4c94..7c70346175814973bf37b22730342bbf1bbbfbac 100644
--- a/content/renderer/pepper/host_var_tracker.cc
+++ b/content/renderer/pepper/host_var_tracker.cc
@@ -103,6 +103,13 @@ int HostVarTracker::GetLiveNPObjectVarsForInstance(PP_Instance instance) const {
   return static_cast<int>(found->second->size());
 }
 
+PP_Var HostVarTracker::MakeResourcePPVar(const IPC::Message& creation_message,
+                                         int pending_renderer_id,
+                                         int pending_browser_id,
+                                         PP_Instance instance) {
+  return VarTracker::MakeResourcePPVar(0);

[raymes, 2013/10/30 06:31:51]

Should this be NOTREACHED?

[Matt Giuca, 2013/10/30 07:00:39]

Well, it's technically valid to call this -- on the host side, we always ignore
creation_message. If the pp_resource is 0 and creation_message is not empty,
we'll end up here, and we should just return a PP_Var with 0.

I don't think we *will* ever get here, since why would creation_message be
non-empty when deserializing a resource on the host side? But technically, this
is allowed.

+}
+
 ppapi::ResourceVar* HostVarTracker::MakeResourceVar(PP_Resource pp_resource) {
   return new HostResourceVar(pp_resource);
 }