Add VMRuntime.isBootClassPathOnDisk

Bug: 17679443
Change-Id: Ib9651878c2b8bd49ccef81fe335614fce724c4d1
diff --git a/libart/src/main/java/dalvik/system/VMRuntime.java b/libart/src/main/java/dalvik/system/VMRuntime.java
index a905c71..43fa00e 100644
--- a/libart/src/main/java/dalvik/system/VMRuntime.java
+++ b/libart/src/main/java/dalvik/system/VMRuntime.java
@@ -336,4 +336,17 @@
     public static boolean is64BitAbi(String abi) {
         return is64BitInstructionSet(getInstructionSet(abi));
     }
+
+    /**
+     * Return false if the boot class path for the given instruction
+     * set mapped from disk storage, versus being interpretted from
+     * dirty pages in memory.
+     */
+    public static native boolean isBootClassPathOnDisk(String instructionSet);
+
+    /**
+     * Returns the instruction set of the current runtime.
+     */
+    public static native String getCurrentInstructionSet();
+
 }