Make header include guards great again

runtime/platform/floating_point.h

Index: runtime/platform/floating_point.h
diff --git a/runtime/platform/floating_point.h b/runtime/platform/floating_point.h
index 7adaa7339546aa5e4c918f4438ec4ef4ff332777..24d2f9c17bf1339e084d223ba50ef16ef3408094 100644
--- a/runtime/platform/floating_point.h
+++ b/runtime/platform/floating_point.h
@@ -2,10 +2,10 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-#ifndef PLATFORM_FLOATING_POINT_H_
-#define PLATFORM_FLOATING_POINT_H_
+#ifndef RUNTIME_PLATFORM_FLOATING_POINT_H_
+#define RUNTIME_PLATFORM_FLOATING_POINT_H_
 
 inline double fmod_ieee(double x, double y) { return fmod(x, y); }
 inline double atan2_ieee(double y, double x) { return atan2(y, x); }
 
-#endif  // PLATFORM_FLOATING_POINT_H_
+#endif  // RUNTIME_PLATFORM_FLOATING_POINT_H_