[3258939] Need snapshot to limit which layers are included

Change-Id: Id7351a0e3f53dde99b291cffba553d89fd4d7ca9
diff --git a/include/surfaceflinger/ISurfaceComposer.h b/include/surfaceflinger/ISurfaceComposer.h
index 382cbda..693fbfb 100644
--- a/include/surfaceflinger/ISurfaceComposer.h
+++ b/include/surfaceflinger/ISurfaceComposer.h
@@ -121,7 +121,8 @@
     virtual status_t captureScreen(DisplayID dpy,
             sp<IMemoryHeap>* heap,
             uint32_t* width, uint32_t* height, PixelFormat* format,
-            uint32_t reqWidth, uint32_t reqHeight) = 0;
+            uint32_t reqWidth, uint32_t reqHeight,
+            uint32_t minLayerZ, uint32_t maxLayerZ) = 0;
 
     virtual status_t turnElectronBeamOff(int32_t mode) = 0;
     virtual status_t turnElectronBeamOn(int32_t mode) = 0;