Revert of exo: Default pointer surface.

components/exo/pointer.h

Index: components/exo/pointer.h
diff --git a/components/exo/pointer.h b/components/exo/pointer.h
index 5c1f3eef4e98e243908e9174cc7e5385e0cc18d8..ac51b3ba8ccb485934ec2dbfd9a4d4cd2c80f5d6 100644
--- a/components/exo/pointer.h
+++ b/components/exo/pointer.h
@@ -23,7 +23,6 @@
 }
 
 namespace exo {
-class Buffer;
 class PointerDelegate;
 class Surface;
 
@@ -79,10 +78,6 @@
   // The position of the pointer surface relative to the pointer location.
   gfx::Point hotspot_;
 
-  // The default cursor surface.
-  scoped_ptr<Surface> default_surface_;
-  scoped_ptr<Buffer> default_cursor_;
-
   DISALLOW_COPY_AND_ASSIGN(Pointer);
 };