fix libgui header location

Change-Id: Iec71706cdd4f29c6904993648ce873e83ef9cafe
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 39bbb2b..8d508c2 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -22,10 +22,13 @@
 
 #include <gui/SurfaceTexture.h>
 
-#include <pixelflinger/pixelflinger.h>
+#include <utils/Timers.h>
+
 #include <ui/GraphicBuffer.h>
 #include <ui/PixelFormat.h>
 
+#include <gui/ISurfaceComposerClient.h>
+
 #include <EGL/egl.h>
 #include <EGL/eglext.h>
 #include <GLES/gl.h>
@@ -34,7 +37,6 @@
 #include "LayerBase.h"
 #include "SurfaceTextureLayer.h"
 #include "Transform.h"
-#include <utils/Timers.h>
 
 namespace android {