diff --git a/include/gui/SurfaceComposerClient.h b/include/gui/SurfaceComposerClient.h
index 65313df..c73ef70 100644
--- a/include/gui/SurfaceComposerClient.h
+++ b/include/gui/SurfaceComposerClient.h
@@ -146,6 +146,7 @@
             const sp<IGraphicBufferProducer>& bufferProducer);
     static void setDisplayLayerStack(const sp<IBinder>& token,
             uint32_t layerStack);
+    static void setDisplaySize(const sp<IBinder>& token, uint32_t width, uint32_t height);
 
     /* setDisplayProjection() defines the projection of layer stacks
      * to a given display.
diff --git a/include/private/gui/LayerState.h b/include/private/gui/LayerState.h
index 5584fb1..2fa6ff9 100644
--- a/include/private/gui/LayerState.h
+++ b/include/private/gui/LayerState.h
@@ -113,7 +113,8 @@
     enum {
         eSurfaceChanged             = 0x01,
         eLayerStackChanged          = 0x02,
-        eDisplayProjectionChanged   = 0x04
+        eDisplayProjectionChanged   = 0x04,
+        eDisplaySizeChanged         = 0x08
     };
 
     uint32_t what;
@@ -123,6 +124,7 @@
     uint32_t orientation;
     Rect viewport;
     Rect frame;
+    uint32_t width, height;
     status_t write(Parcel& output) const;
     status_t read(const Parcel& input);
 };