Run recursive file operations sequentially.

content/browser/fileapi/copy_or_move_operation_delegate_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 #include <stdint.h>
 #include <map>
 #include <queue>
 #include <utility>
 
@@ skipping 601 matching lines @@
                                       kRegularFileSystemTestCases,
                                       kRegularFileSystemTestCaseSize));
 
   // Move it.
   helper.Move(src, dest);
 
   // Verify.
   ASSERT_TRUE(helper.DirectoryExists(src));
   ASSERT_TRUE(helper.DirectoryExists(dest));
 
+  // In the move operation, [file 0, file 2, file 3] are processed as LIFO.
+  // After file 3 is processed, file 2 is rejected by the validator and the
+  // operation fails. That is, only file 3 should be in dest.
   FileSystemTestCaseRecord kMoveDirResultCases[] = {
-    {false, FILE_PATH_LITERAL("file 0"), 38},
     {false, FILE_PATH_LITERAL("file 3"), 0},
   };
 
   helper.VerifyTestCaseFiles(dest,
                              kMoveDirResultCases,
                              arraysize(kMoveDirResultCases));
 }
 
 TEST(LocalFileSystemCopyOrMoveOperationTest, CopySingleFileNoValidator) {
   CopyOrMoveOperationTestHelper helper(GURL("http://foo"),
@@ skipping 232 matching lines @@
 
   base::File::Error error = base::File::FILE_ERROR_FAILED;
   base::RunLoop run_loop;
   helper.Run(base::Bind(&AssignAndQuit, &run_loop, &error));
   run_loop.Run();
 
   EXPECT_EQ(base::File::FILE_ERROR_ABORT, error);
 }
 
 }  // namespace content