Update ListView's children when the drawing cache color hint changes.
Bug #2371777
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index df4cab0..a3d3521 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -6177,7 +6177,10 @@
      * @see #getDrawingCache()
      */
     public void setDrawingCacheBackgroundColor(int color) {
-        mDrawingCacheBackgroundColor = color;
+        if (color != mDrawingCacheBackgroundColor) {
+            mDrawingCacheBackgroundColor = color;
+            mPrivateFlags &= ~DRAWING_CACHE_VALID;
+        }
     }
 
     /**