allow re-targetting of surfaces

Surfaces can now be parcelized and sent to remote
processes. When a surface crosses a process
boundary, it looses its connection with the
current process and gets attached to the new one.

Change-Id: I39c7b055bcd3ea1162ef2718d3d4b866bf7c81c0
diff --git a/libs/surfaceflinger_client/SharedBufferStack.cpp b/libs/surfaceflinger_client/SharedBufferStack.cpp
index 1dd8642..d67a589 100644
--- a/libs/surfaceflinger_client/SharedBufferStack.cpp
+++ b/libs/surfaceflinger_client/SharedBufferStack.cpp
@@ -494,6 +494,10 @@
     }
 }
 
+SharedBufferServer::~SharedBufferServer()
+{
+}
+
 ssize_t SharedBufferServer::retireAndLock()
 {
     RWLock::AutoRLock _l(mLock);