Adding in-process crash dumping library and crash uploader

src/platform/crash/crash_dumper.h

+// 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_CRASH_DUMPER_H_
+#define CRASH_CRASH_DUMPER_H_
+
+#include <string>
+
+#include "base/scoped_ptr.h"
+
+namespace google_breakpad {
+class ExceptionHandler;
+}
+
+class FilePath;
+
+// Class to manage crash handling and dumping.  When Enable is called, all
+// crashes will be caught and stored to the appropriate crash directory.
+// The directory will be:
+//   /home/chronos/user/crash - for all processes running as chronos
+//   /var/spool/crash - for all other processes
+// The class takes care of creating the directories (even recreating them
+// at crash time in case the cryptohome mounting changes from Enable time.
+
+class CrashDumper {
+ public:
+  ~CrashDumper() {
+    if (IsEnabled()) {
+      Disable();
+    }
+  }
+
+  // Enable crash detection and dumping.  Aborts if already enabled
+  // or crash reporting cannot be enabled.  If the cryptohome is mounted
+  // while crash handling is enabled, later crashes may be lost.
+  static void Enable();
+
+  // Return if enabled.
+  static bool IsEnabled();
+
+  // Disable crash detection and dumping.  Aborts if not enabled.
+  static void Disable();
+};
+
+#endif  // CRASH_CRASH_DUMPER_H_