Refactoring: Rename SurfaceTextureClient to Surface

Change-Id: Ibed34175ae273608393aaa5f0a7df207dc40d709
diff --git a/cmds/flatland/GLHelper.h b/cmds/flatland/GLHelper.h
index 19fdff9..7341374 100644
--- a/cmds/flatland/GLHelper.h
+++ b/cmds/flatland/GLHelper.h
@@ -16,7 +16,7 @@
 
 #include <gui/GraphicBufferAlloc.h>
 #include <gui/GLConsumer.h>
-#include <gui/SurfaceTextureClient.h>
+#include <gui/Surface.h>
 
 #include <EGL/egl.h>
 #include <GLES2/gl2.h>