Revert of Temporary: Detect WebSocket destruction order problem

net/http/http_network_session.h

Index: net/http/http_network_session.h
diff --git a/net/http/http_network_session.h b/net/http/http_network_session.h
index f9a39fee9ab75954a8334937645e663b41d7ccbb..9ae55047c04a2afb35dc5a6a98e7233731c77fb5 100644
--- a/net/http/http_network_session.h
+++ b/net/http/http_network_session.h
@@ -282,10 +282,6 @@
                     SSLConfig* server_config,
                     SSLConfig* proxy_config) const;
 
-  // TODO(ricea): Remove this by October 2016.
-  void IncrementActiveWebSockets() { ++active_websockets_; }
-  void DecrementActiveWebSockets() { --active_websockets_; }
-
  private:
   friend class HttpNetworkSessionPeer;
 
@@ -320,9 +316,6 @@
   Params params_;
 
   std::unique_ptr<base::MemoryPressureListener> memory_pressure_listener_;
-
-  // TODO(ricea): Remove this by October 2016.
-  int active_websockets_ = 0;
 };
 
 }  // namespace net