SurfaceFlinger: set layer names on SurfaceTextures

This change sets the SurfaceTexture name string to match that of the
layer to which it belongs.

Change-Id: Ib302d79e916a36ab1e54cb9ff477c3b857bd957b
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index ff389ae..82e3521 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -74,6 +74,7 @@
     virtual bool isProtected() const;
     virtual void onRemoved();
     virtual sp<Layer> getLayer() const { return const_cast<Layer*>(this); }
+    virtual void setName(const String8& name);
 
     // LayerBaseClient interface
     virtual wp<IBinder> getSurfaceTextureBinder() const;