split ComposerService out of SurfaceComposerClient.h

Change-Id: I1eb691f7ca263d5895d871ab675bb5826e0323c6
diff --git a/libs/gui/SurfaceTexture.cpp b/libs/gui/SurfaceTexture.cpp
index b4d01a9..289726b 100644
--- a/libs/gui/SurfaceTexture.cpp
+++ b/libs/gui/SurfaceTexture.cpp
@@ -29,6 +29,8 @@
 
 #include <hardware/hardware.h>
 
+#include <private/gui/ComposerService.h>
+
 #include <surfaceflinger/ISurfaceComposer.h>
 #include <surfaceflinger/SurfaceComposerClient.h>
 #include <surfaceflinger/IGraphicBufferAlloc.h>