[RenderScript] change the constructor back to protected.

Change-Id: I410dd315733cde95ef447fb4a62edb0d11ba28fc
diff --git a/v8/renderscript/java/src/android/support/v8/renderscript/ScriptIntrinsicHistogram.java b/v8/renderscript/java/src/android/support/v8/renderscript/ScriptIntrinsicHistogram.java
index 9833ea1..3ed48f9 100644
--- a/v8/renderscript/java/src/android/support/v8/renderscript/ScriptIntrinsicHistogram.java
+++ b/v8/renderscript/java/src/android/support/v8/renderscript/ScriptIntrinsicHistogram.java
@@ -28,7 +28,7 @@
     // API level for the intrinsic
     private static final int INTRINSIC_API_LEVEL = 19;
 
-    private ScriptIntrinsicHistogram(long id, RenderScript rs) {
+    protected ScriptIntrinsicHistogram(long id, RenderScript rs) {
         super(id, rs);
     }