Collect and send kernel crash diagnostics

unclean_shutdown_collector.h

Index: unclean_shutdown_collector.h
diff --git a/unclean_shutdown_collector.h b/unclean_shutdown_collector.h
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+// Copyright (c) 2010 The Chromium OS 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 _CRASH_REPORTER_UNCLEAN_SHUTDOWN_COLLECTOR_H_
+#define _CRASH_REPORTER_UNCLEAN_SHUTDOWN_COLLECTOR_H_
+
+#include <string>
+
+#include "base/file_path.h"
+#include "crash-reporter/crash_collector.h"
+#include "gtest/gtest_prod.h"  // for FRIEND_TEST
+
+// Unclean shutdown collector.
+class UncleanShutdownCollector : public CrashCollector {
+ public:
+  UncleanShutdownCollector();
+  virtual ~UncleanShutdownCollector();
+
+  // Enable collection - signal that a boot has started.
+  bool Enable();
+
+  // Collect if there is was an unclean shutdown. Returns true if
+  // there was, false otherwise.
+  bool Collect();
+
+  // Disable collection - signal that the system has been shutdown cleanly.
+  bool Disable();
+
+ private:
+  friend class UncleanShutdownCollectorTest;
+  FRIEND_TEST(UncleanShutdownCollectorTest, EnableCannotWrite);
+
+  bool DeleteUncleanShutdownFile();
+
+  const char *unclean_shutdown_file_;
+};
+
+#endif  // _CRASH_REPORTER_UNCLEAN_SHUTDOWN_COLLECTOR_H_