Pepper: Add some basic tests for PPB_Audio.

ppapi/tests/test_audio.h

+// Copyright (c) 2011 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 PAPPI_TESTS_TEST_AUDIO_H_
+#define PAPPI_TESTS_TEST_AUDIO_H_
+
+#include <string>
+
+#include "ppapi/tests/test_case.h"
+
+struct PPB_Audio;
+struct PPB_AudioConfig;
+struct PPB_Core;
+
+class TestAudio : public TestCase {
+ public:
+  explicit TestAudio(TestingInstance* instance) : TestCase(instance) {}
+
+  // TestCase implementation.
+  virtual bool Init();
+  virtual void RunTests(const std::string& filter);
+
+ private:
+  std::string TestCreation();
+  std::string TestDestroyNoStop();
+  std::string TestFailures();
+
+  const PPB_Audio* audio_interface_;
+  const PPB_AudioConfig* audio_config_interface_;
+  const PPB_Core* core_interface_;
+};
+
+#endif  // PAPPI_TESTS_TEST_AUDIO_H_