Add crash keys for the installer covering simple InstallerState fields.

chrome/installer/setup/installer_crash_reporting.h

Index: chrome/installer/setup/installer_crash_reporting.h
diff --git a/chrome/installer/setup/installer_crash_reporting.h b/chrome/installer/setup/installer_crash_reporting.h
new file mode 100644
index 0000000000000000000000000000000000000000..4ce1baee54b87894791b9494ade2b0c11c97dd17
--- /dev/null
+++ b/chrome/installer/setup/installer_crash_reporting.h
@@ -0,0 +1,29 @@
+// Copyright 2015 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 CHROME_INSTALLER_SETUP_INSTALLER_CRASH_REPORTING_H_
+#define CHROME_INSTALLER_SETUP_INSTALLER_CRASH_REPORTING_H_
+
+#include <vector>

[grt (UTC plus 2), 2015/11/27 15:05:17]

unused. :-)

+
+#include "base/debug/crash_logging.h"

[grt (UTC plus 2), 2015/11/27 15:05:16]

move to .cc file

+
+namespace installer {
+
+class InstallerState;
+
+// Sets up the crash reporting system for the installer.
+void ConfigureCrashReporting(const InstallerState& installer_state);
+
+// Registers all crash keys used by the installer.
+size_t RegisterCrashKeys();
+
+// Sets all crash keys that are available during process startup. These do not
+// vary during execution so this function will not need to be called more than
+// once.
+void SetInitialCrashKeys(const InstallerState& installer_state);
+
+}  // namespace installer
+
+#endif  // CHROME_INSTALLER_SETUP_INSTALLER_CRASH_REPORTING_H_