Change scoped_ptr to std::unique_ptr in //net/socket.

net/socket/websocket_endpoint_lock_manager.h

Index: net/socket/websocket_endpoint_lock_manager.h
diff --git a/net/socket/websocket_endpoint_lock_manager.h b/net/socket/websocket_endpoint_lock_manager.h
index dfbc30897abed31d22a0b239d8f811155553902c..a0388b619c22afaf88ac076ec58a51afb9edf030 100644
--- a/net/socket/websocket_endpoint_lock_manager.h
+++ b/net/socket/websocket_endpoint_lock_manager.h
@@ -104,7 +104,7 @@ class NET_EXPORT_PRIVATE WebSocketEndpointLockManager {
     // Must be NULL to copy this object into the map. Must be set to non-NULL
     // after the object is inserted into the map then point to the same list
     // until this object is deleted.
-    scoped_ptr<WaiterQueue> queue;
+    std::unique_ptr<WaiterQueue> queue;
 
     // This pointer is only used to identify the last instance of StreamSocket
     // that was passed to RememberSocket() for this endpoint. It should only be