Support FD passing for NaCl on posix

chrome/nacl/nacl_ipc_adapter.cc

Index: chrome/nacl/nacl_ipc_adapter.cc
diff --git a/chrome/nacl/nacl_ipc_adapter.cc b/chrome/nacl/nacl_ipc_adapter.cc
index c615a05b18cf46fd215ef82e8071e884bc611640..425695aff5396d6bd3237cfaf4fb6a2d24c54de1 100644
--- a/chrome/nacl/nacl_ipc_adapter.cc
+++ b/chrome/nacl/nacl_ipc_adapter.cc
@@ -18,6 +18,7 @@
 #include "native_client/src/trusted/desc/nacl_desc_base.h"
 #include "native_client/src/trusted/desc/nacl_desc_custom.h"
 #include "native_client/src/trusted/desc/nacl_desc_imc_shm.h"
+#include "native_client/src/trusted/desc/nacl_desc_io.h"
 #include "native_client/src/trusted/desc/nacl_desc_sync_socket.h"
 #include "native_client/src/trusted/desc/nacl_desc_wrapper.h"
 #include "ppapi/proxy/ppapi_messages.h"
@@ -368,7 +369,7 @@ bool NaClIPCAdapter::OnMessageReceived(const IPC::Message& msg) {
           uint32_t size = iter->size();
           nacl_desc.reset(new NaClDescWrapper(NaClDescImcShmMake(
 #if defined(OS_WIN)
-              reinterpret_cast<const NaClHandle>(shm_handle),
+              shm_handle,
 #else
               shm_handle.fd,
 #endif
@@ -378,7 +379,7 @@ bool NaClIPCAdapter::OnMessageReceived(const IPC::Message& msg) {
         case ppapi::proxy::SerializedHandle::SOCKET: {
           nacl_desc.reset(new NaClDescWrapper(NaClDescSyncSocketMake(
 #if defined(OS_WIN)
-              reinterpret_cast<const NaClHandle>(iter->descriptor())
+              iter->descriptor()
 #else
               iter->descriptor().fd
 #endif
@@ -408,8 +409,13 @@ bool NaClIPCAdapter::OnMessageReceived(const IPC::Message& msg) {
           break;
         }
         case ppapi::proxy::SerializedHandle::FILE:
-          // TODO(raymes): Handle file handles for NaCl.
-          NOTIMPLEMENTED();
+          nacl_desc.reset(new NaClDescWrapper(NaClDescIoDescMakeFromHandle(
+#if defined(OS_WIN)
+              iter->descriptor()
+#else
+              iter->descriptor().fd
+#endif
+          )));
           break;
         case ppapi::proxy::SerializedHandle::INVALID: {
           // Nothing to do. TODO(dmichael): Should we log this? Or is it
@@ -548,4 +554,3 @@ void NaClIPCAdapter::SaveMessage(const IPC::Message& msg,
   rewritten_msg->SetData(header, msg.payload(), msg.payload_size());
   locked_data_.to_be_received_.push(rewritten_msg);
 }
-