Revert 171408

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 d7e77862228d990f870d30ed231daa0771ba8e9f..2bbaa1fff759425d9361ad4c57d7e944b2712550 100644
--- a/chrome/nacl/nacl_ipc_adapter.cc
+++ b/chrome/nacl/nacl_ipc_adapter.cc
@@ -546,10 +546,6 @@ bool NaClIPCAdapter::OnMessageReceived(const IPC::Message& msg) {
                          base::Passed(&response)));
           break;
         }
-        case ppapi::proxy::SerializedHandle::FILE:
-          // TODO(raymes): Handle file handles for NaCl.
-          NOTIMPLEMENTED();
-          break;
         case ppapi::proxy::SerializedHandle::INVALID: {
           // Nothing to do. TODO(dmichael): Should we log this? Or is it
           // sometimes okay to pass an INVALID handle?