Fix multiple inclusion guards to match new pathnames

Change-Id: Id7735be1d75bc315733b1773fba45c1deb8ace43
diff --git a/runtime/modifiers.h b/runtime/modifiers.h
index 85bc06d..9b61ee0 100644
--- a/runtime/modifiers.h
+++ b/runtime/modifiers.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef ART_SRC_MODIFIERS_H_
-#define ART_SRC_MODIFIERS_H_
+#ifndef ART_RUNTIME_MODIFIERS_H_
+#define ART_RUNTIME_MODIFIERS_H_
 
 #include <stdint.h>
 
@@ -63,5 +63,5 @@
                                                 | kAccClassIsFinalizerReference
                                                 | kAccClassIsPhantomReference);
 
-#endif  // ART_SRC_MODIFIERS_H_
+#endif  // ART_RUNTIME_MODIFIERS_H_