Fixing bad error return code in html5fs remove/unlink/rmdir.

native_client_sdk/src/tests/nacl_io_test/html5_fs_test.cc

Index: native_client_sdk/src/tests/nacl_io_test/html5_fs_test.cc
diff --git a/native_client_sdk/src/tests/nacl_io_test/html5_fs_test.cc b/native_client_sdk/src/tests/nacl_io_test/html5_fs_test.cc
index 3cb8d1646da9cabfe925fcf3763922360698e164..abffa13d22d7b2b16143d029d4460f8f3a285096 100644
--- a/native_client_sdk/src/tests/nacl_io_test/html5_fs_test.cc
+++ b/native_client_sdk/src/tests/nacl_io_test/html5_fs_test.cc
@@ -198,6 +198,7 @@ TEST_F(Html5FsTest, Remove) {
   ASSERT_TRUE(fs->Exists(kPath));
   ASSERT_EQ(0, fs->Remove(path));
   EXPECT_FALSE(fs->Exists(kPath));
+  ASSERT_EQ(ENOENT, fs->Remove(path));
 }
 
 TEST_F(Html5FsTest, Unlink) {
@@ -213,6 +214,7 @@ TEST_F(Html5FsTest, Unlink) {
   ASSERT_EQ(EISDIR, fs->Unlink(Path("/dir")));
   EXPECT_FALSE(fs->Exists("/file"));
   EXPECT_TRUE(fs->Exists("/dir"));
+  ASSERT_EQ(ENOENT, fs->Unlink(Path("/file")));
 }
 
 TEST_F(Html5FsTest, Rmdir) {
@@ -226,6 +228,7 @@ TEST_F(Html5FsTest, Rmdir) {
   EXPECT_EQ(0, fs->Rmdir(Path("/dir")));
   EXPECT_FALSE(fs->Exists("/dir"));
   EXPECT_TRUE(fs->Exists("/file"));
+  EXPECT_EQ(ENOENT, fs->Rmdir(Path("/dir")));
 }
 
 TEST_F(Html5FsTest, Rename) {