Add oatopt drop in replacement for dexopt

Change-Id: I094375230af2d9a88e30245b390cac71be7b50f4
diff --git a/src/utils.h b/src/utils.h
index 7778918..35b350b 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -212,9 +212,12 @@
 // implementation-defined limit.
 void SetThreadName(const char* name);
 
-// Returns the art-cache location or dies trying
+// Returns the art-cache location, or dies trying.
 std::string GetArtCacheOrDie();
 
+// Returns the art-cache location for an OatFile, or dies trying.
+std::string GetArtCacheOatFilenameOrDie(const std::string& location);
+
 }  // namespace art
 
 #endif  // ART_SRC_UTILS_H_