Add support for persistent file access in apps.

chrome/test/data/extensions/api_test/file_system/get_entry_id/test_util.js

Index: chrome/test/data/extensions/api_test/file_system/get_entry_id/test_util.js
diff --git a/chrome/test/data/extensions/api_test/file_system/get_entry_id/test_util.js b/chrome/test/data/extensions/api_test/file_system/get_entry_id/test_util.js
deleted file mode 100644
index c4845b2f867e52a9a4c9e8805530495283853406..0000000000000000000000000000000000000000
--- a/chrome/test/data/extensions/api_test/file_system/get_entry_id/test_util.js
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2012 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.
-
-// This is a duplicate of the file test_util in
-// chrome/test/data/extensions/api_test/file_system
-
-function checkEntry(entry, expectedName, isNew, shouldBeWritable) {
-  chrome.test.assertEq(expectedName, entry.name);
-  // Test that the file can be read.
-  entry.file(chrome.test.callback(function(file) {
-    var reader = new FileReader();
-    reader.onloadend = chrome.test.callbackPass(function(e) {
-      if (isNew)
-        chrome.test.assertEq(reader.result, "");
-      else
-        chrome.test.assertEq(reader.result.indexOf("Can you see me?"), 0);
-      // Test that we can write to the file, or not, depending on
-      // |shouldBeWritable|.
-      entry.createWriter(function(fileWriter) {
-        fileWriter.onwriteend = chrome.test.callback(function(e) {
-          if (fileWriter.error) {
-            if (shouldBeWritable) {
-              chrome.test.fail("Error writing to file: " +
-                               fileWriter.error.toString());
-            } else {
-              chrome.test.succeed();
-            }
-          } else {
-            if (shouldBeWritable) {
-              // Get a new entry and check the data got to disk.
-              chrome.fileSystem.chooseEntry(chrome.test.callbackPass(
-                  function(readEntry) {
-                readEntry.file(chrome.test.callback(function(readFile) {
-                  var readReader = new FileReader();
-                  readReader.onloadend = function(e) {
-                    chrome.test.assertEq(readReader.result.indexOf("HoHoHo!"),
-                                         0);
-                    chrome.test.succeed();
-                  };
-                  readReader.onerror = function(e) {
-                    chrome.test.fail("Failed to read file after write.");
-                  };
-                  readReader.readAsText(readFile);
-                }));
-              }));
-            } else {
-              chrome.test.fail(
-                 "'Could write to file that should not be writable.");
-            }
-          }
-        });
-        var blob = new Blob(["HoHoHo!"], {type: "text/plain"});
-        fileWriter.write(blob);
-      });
-    });
-    reader.onerror = chrome.test.callback(function(e) {
-      chrome.test.fail("Error reading file contents.");
-    });
-    reader.readAsText(file);
-  }));
-}