Add gl.dll, compositor.dll, and surface.dll.

ui/gfx/compositor/layer.h

Index: ui/gfx/compositor/layer.h
===================================================================
--- ui/gfx/compositor/layer.h	(revision 96780)
+++ ui/gfx/compositor/layer.h	(working copy)
@@ -26,7 +26,7 @@
 // NOTE: unlike Views, each Layer does *not* own its children views. If you
 // delete a Layer and it has children, the parent of each child layer is set to
 // NULL, but the children are not deleted.
-class Layer {
+class COMPOSITOR_EXPORT Layer {
  public:
   explicit Layer(Compositor* compositor);
   ~Layer();