Add events with custom timestamps and thread id to PPAPI dev tracing interface.

ppapi/tests/test_trace_event.h

+// Copyright (c) 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 PPAPI_TESTS_TEST_TRACE_EVENT_H_
+#define PPAPI_TESTS_TEST_TRACE_EVENT_H_
+
+#include <string>
+
+#include "ppapi/c/dev/ppb_trace_event_dev.h"
+#include "ppapi/tests/test_case.h"
+
+class TestTraceEvent : public TestCase {
+ public:
+  explicit TestTraceEvent(TestingInstance* instance);
+
+ private:
+  // TestCase implementation.
+  virtual bool Init();
+  virtual void RunTests(const std::string& filter);
+
+  std::string TestSmoke();
+  std::string TestSmokeWithTimestamps();
+  std::string TestClock();
+
+  const PPB_Trace_Event_Dev* interface_;
+};
+
+#endif  // PPAPI_TESTS_TEST_TRACE_EVENT_H_