Prototype implementation of MediaImportHandler.

chrome/test/data/file_manager/unit_tests/mocks/mock_media_scanner.js

Index: chrome/test/data/file_manager/unit_tests/mocks/mock_media_scanner.js
diff --git a/chrome/test/data/file_manager/unit_tests/mocks/mock_media_scanner.js b/chrome/test/data/file_manager/unit_tests/mocks/mock_media_scanner.js
new file mode 100644
index 0000000000000000000000000000000000000000..35874655c5c849aa417bbb11290d1486fe101605
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+++ b/chrome/test/data/file_manager/unit_tests/mocks/mock_media_scanner.js
@@ -0,0 +1,28 @@
+// Copyright 2014 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.
+
+/**
+ * A fake media scanner for testing.
+ * @constructor

[hirono, 2014/12/04 04:44:24]

@struct?

[Ben Kwa, 2014/12/04 19:53:01]

Done.

+ */
+function MockMediaScanner() {
+  /** @private {!Array<!FileEntry>} */
+  this.results = [];

[hirono, 2014/12/04 04:44:25]

Please add '_' at the end for private members.

[Ben Kwa, 2014/12/04 19:53:01]

Done.

+}
+
+/**
+ * Returns scan "results".
+ * @return {!Promise<!Array<!FileEntry>>}

[hirono, 2014/12/04 04:44:25]

!Promise.<!Array.<!FileEntry>>

[Ben Kwa, 2014/12/04 19:53:01]

Acknowledged.

+ */
+MockMediaScanner.prototype.scan = function(entries) {
+  return Promise.resolve(this.results);
+};
+
+/**
+ * Sets the entries that the scanner will return.
+ * @param {!Array<!FileEntry>} entries

[hirono, 2014/12/04 04:44:24]

!Array.<!FileEntry>

[Ben Kwa, 2014/12/04 19:53:01]

Acknowledged.

+ */
+MockMediaScanner.prototype.setScanResults = function(entries) {
+  this.results = entries;
+};