diff --git a/libs/surfaceflinger/SurfaceFlinger.h b/libs/surfaceflinger/SurfaceFlinger.h
index a242f1a..8e5fd88 100644
--- a/libs/surfaceflinger/SurfaceFlinger.h
+++ b/libs/surfaceflinger/SurfaceFlinger.h
@@ -35,11 +35,11 @@
 #include <private/ui/LayerState.h>
 #include <private/ui/SurfaceFlingerSynchro.h>
 
+#include "Barrier.h"
+#include "BootAnimation.h"
+#include "CPUGauge.h"
 #include "Layer.h"
 #include "Tokenizer.h"
-#include "CPUGauge.h"
-#include "BootAnimation.h"
-#include "Barrier.h"
 
 struct copybit_device_t;
 struct overlay_device_t;
@@ -48,16 +48,18 @@
 
 // ---------------------------------------------------------------------------
 
-class BClient;
 class Client;
+class BClient;
 class DisplayHardware;
+class FreezeLock;
 class GPUHardwareInterface;
 class IGPUCallback;
 class Layer;
 class LayerBuffer;
+class LayerOrientationAnim;
+class OrientationAnimation;
 class RFBServer;
 class SurfaceHeapManager;
-class FreezeLock;
 
 typedef int32_t ClientID;
 
@@ -181,7 +183,12 @@
 
             copybit_device_t* getBlitEngine() const;
             overlay_control_device_t* getOverlayEngine() const;
+
             
+    status_t removeLayer(LayerBase* layer);
+    status_t addLayer(LayerBase* layer);
+    status_t invalidateLayerVisibility(LayerBase* layer);
+    
 private:
     friend class BClient;
     friend class LayerBase;
@@ -352,6 +359,8 @@
                 bool                        mFreezeDisplay;
                 int32_t                     mFreezeCount;
                 nsecs_t                     mFreezeDisplayTime;
+                friend class OrientationAnimation;
+                OrientationAnimation*       mOrientationAnimation;
 
                 // access protected by mDebugLock
     mutable     Mutex                       mDebugLock;