Metric & meta-metric for CECPQ1 handshake latency.

net/socket/ssl_client_socket.h

Index: net/socket/ssl_client_socket.h
diff --git a/net/socket/ssl_client_socket.h b/net/socket/ssl_client_socket.h
index 494c6cbf4a6a43abcf6466bbbe394af8ff47fcfc..be3e47efe22e5e2a579f1723b5d726c0d9b29822 100644
--- a/net/socket/ssl_client_socket.h
+++ b/net/socket/ssl_client_socket.h
@@ -151,6 +151,10 @@ class NET_EXPORT SSLClientSocket : public SSLSocket {
   // establishing the connection (or NULL if no channel ID was used).
   virtual crypto::ECPrivateKey* GetChannelIDKey() const = 0;
 
+  // Returns true if the CECPQ1 (experimental post-quantum) experiment is
+  // enabled.
+  static bool IsPostQuantumExperimentEnabled();
+
  protected:
   void set_negotiation_extension(
       SSLNegotiationExtension negotiation_extension) {