Use max acquired buffer setting to configStore

Change-Id: I48454243bcac12f5a83d080cd9115686f9f728ca
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 2a24cb2..581bbfd 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -147,6 +147,10 @@
     // Equal to min(max_height, max_width).
     static uint64_t maxVirtualDisplaySize;
 
+    // Controls the number of buffers SurfaceFlinger will allocate for use in
+    // FramebufferSurface
+    static int64_t maxFrameBufferAcquiredBuffers;
+
     static char const* getServiceName() ANDROID_API {
         return "SurfaceFlinger";
     }