Turn on build/header_guard in cpplint.
Set the correct root path in CPPLINT.cfg and fix existing violations.
Test: tools/repohooks/tools/cpplint.py --quiet system/update_engine/**/*.h
Change-Id: I37812854a68116c69bcef28f8b15856b89a07c4d
diff --git a/power_manager_chromeos.h b/power_manager_chromeos.h
index ad49889..eeb14d8 100644
--- a/power_manager_chromeos.h
+++ b/power_manager_chromeos.h
@@ -14,8 +14,8 @@
// limitations under the License.
//
-#ifndef UPDATE_ENGINE_POWER_MANAGER_H_
-#define UPDATE_ENGINE_POWER_MANAGER_H_
+#ifndef UPDATE_ENGINE_POWER_MANAGER_CHROMEOS_H_
+#define UPDATE_ENGINE_POWER_MANAGER_CHROMEOS_H_
#include <base/macros.h>
#include <power_manager/dbus-proxies.h>
@@ -41,4 +41,4 @@
} // namespace chromeos_update_engine
-#endif // UPDATE_ENGINE_POWER_MANAGER_H_
+#endif // UPDATE_ENGINE_POWER_MANAGER_CHROMEOS_H_