diff --git a/include/ui/GraphicBuffer.h b/include/ui/GraphicBuffer.h
index 370253a..b9deafc 100644
--- a/include/ui/GraphicBuffer.h
+++ b/include/ui/GraphicBuffer.h
@@ -62,6 +62,7 @@
         USAGE_HW_TEXTURE        = GRALLOC_USAGE_HW_TEXTURE,
         USAGE_HW_RENDER         = GRALLOC_USAGE_HW_RENDER,
         USAGE_HW_2D             = GRALLOC_USAGE_HW_2D,
+        USAGE_HW_COMPOSER       = GRALLOC_USAGE_HW_COMPOSER,
         USAGE_HW_MASK           = GRALLOC_USAGE_HW_MASK
     };
 
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 8b2485a..f8925b8 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -556,6 +556,7 @@
         // need a hardware-protected path to external video sink
         usage |= GraphicBuffer::USAGE_PROTECTED;
     }
+    usage |= GraphicBuffer::USAGE_HW_COMPOSER;
     return usage;
 }
 
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 0080202..6fde361 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -2207,7 +2207,7 @@
         return BAD_VALUE;
 
     // make sure none of the layers are protected
-    const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ);
+    const LayerVector& layers(mDrawingState.layersSortedByZ);
     const size_t count = layers.size();
     for (size_t i=0 ; i<count ; ++i) {
         const sp<LayerBase>& layer(layers[i]);