Add CDM FileIO tests.

media/cdm/ppapi/cdm_file_io_test.h

+// 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.
+
+#ifndef MEDIA_CDM_PPAPI_CDM_FILE_IO_TEST_H_
+#define MEDIA_CDM_PPAPI_CDM_FILE_IO_TEST_H_
+
+#include "base/callback.h"
+#include "base/compiler_specific.h"
+#include "media/cdm/ppapi/api/content_decryption_module.h"
+#include "media/cdm/ppapi/clear_key_cdm_common.h"

[ddorwin, 2013/12/11 21:16:17]

The comment below says "a CDM", but this include and its types limit it to a
specific one. That's okay for a test, but it would be nice if it wasn't tied to
CK.

[xhwang, 2013/12/13 02:51:47]

Done.

+
+namespace media {
+
+// Tests cdm::FileIO implementation. This class needs to be used in a CDM
+// implementation to work. The caller calls CdmFileIoTest::Run() to start the
+// test, where the test result is reported in the completion callback.
+class CdmFileIOTest : public cdm::FileIOClient {
+ public:
+  typedef base::Callback<void(bool success)> CompletionCB;
+
+  explicit CdmFileIOTest(ClearKeyCdmHost* cdm_host);
+  virtual ~CdmFileIOTest();
+
+  // cdm::FileIOClient implementation.
+  virtual void OnOpenComplete(Status status) OVERRIDE;
+  virtual void OnReadComplete(Status status,
+                              const uint8_t* data, uint32_t data_size) OVERRIDE;
+  virtual void OnWriteComplete(Status status) OVERRIDE;
+
+  // Start tests. When tests are completed, the result will be reported in the
+  // |completion_cb|.
+  void Run( CompletionCB completion_cb);

[ddorwin, 2013/12/11 21:16:17]

extra space after (

[xhwang, 2013/12/13 02:51:47]

Done.

+
+ private:
+  void OnTestComplete(bool success);
+
+  ClearKeyCdmHost* cdm_host_;
+  cdm::FileIO* cdm_file_io_;
+  CompletionCB completion_cb_;
+
+  std::vector<uint8_t> test_data_;
+
+  DISALLOW_COPY_AND_ASSIGN (CdmFileIOTest);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_CDM_PPAPI_CDM_FILE_IO_TEST_H_