am 3d7f0cb: Update header for forward compatibility

* commit '3d7f0cb3d9724eb4a45611127e0986538e838964':
  Update header for forward compatibility

Author: Teng-Hui Zhu

include/private/hwui/DrawGlInfo.h

@@ -31,6 +31,10 @@ struct DrawGlInfo {
     int clipRight;
     int clipBottom;
 
+    // Input: current width/height of destination surface
+    int width;
+    int height;
+
     // Input: is the render target an FBO
     bool isLayer;