[NaCl SDK] Remove syscalls wrappers for chmod and unlink.

native_client_sdk/src/libraries/nacl_io/html5fs/html5_fs.cc

Index: native_client_sdk/src/libraries/nacl_io/html5fs/html5_fs.cc
diff --git a/native_client_sdk/src/libraries/nacl_io/html5fs/html5_fs.cc b/native_client_sdk/src/libraries/nacl_io/html5fs/html5_fs.cc
index f7a622fd7467226e3963461f0610f0e73d8dabd8..00d2e934aebf06ad51db64ff52ac0c4679ca527a 100644
--- a/native_client_sdk/src/libraries/nacl_io/html5fs/html5_fs.cc
+++ b/native_client_sdk/src/libraries/nacl_io/html5fs/html5_fs.cc
@@ -180,6 +180,8 @@ Html5Fs::Html5Fs()
 }
 
 Error Html5Fs::Init(const FsInitArgs& args) {
+  pthread_cond_init(&filesystem_open_cond_, NULL);
+
   Error error = Filesystem::Init(args);
   if (error)
     return error;
@@ -204,8 +206,6 @@ Error Html5Fs::Init(const FsInitArgs& args) {
     return ENOSYS;
   }
 
-  pthread_cond_init(&filesystem_open_cond_, NULL);
-
   // Parse filesystem args.
   PP_FileSystemType filesystem_type = PP_FILESYSTEMTYPE_LOCALPERSISTENT;
   int64_t expected_size = 0;
@@ -277,7 +277,8 @@ Error Html5Fs::Init(const FsInitArgs& args) {
 }
 
 void Html5Fs::Destroy() {
-  ppapi_->ReleaseResource(filesystem_resource_);
+  if (ppapi_ != NULL && filesystem_resource_ != 0)
+    ppapi_->ReleaseResource(filesystem_resource_);
   pthread_cond_destroy(&filesystem_open_cond_);
 }