Plumb connection attempts from (non-proxy) ConnectJobs to HttpNetworkTransaction.

net/socket/client_socket_handle.h

Index: net/socket/client_socket_handle.h
diff --git a/net/socket/client_socket_handle.h b/net/socket/client_socket_handle.h
index 0899d9a9bb067bea3d1c5c67a17dfd9a921bd68e..aa30649bd3a32da78d766113f131302340675de6 100644
--- a/net/socket/client_socket_handle.h
+++ b/net/socket/client_socket_handle.h
@@ -12,6 +12,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "net/base/completion_callback.h"
+#include "net/base/ip_endpoint.h"
 #include "net/base/load_states.h"
 #include "net/base/load_timing_info.h"
 #include "net/base/net_errors.h"
@@ -39,6 +40,20 @@ class NET_EXPORT ClientSocketHandle {
     NUM_TYPES,
   };
 
+  // A record of a TCP connection attempt made to connect to the host.

[Ryan Hamilton, 2015/03/24 19:20:19]

Can you update the comment to mention TLS errors?

[Deprecated (see juliatuttle), 2015/04/08 19:17:19]

Done.

+  struct ConnectionAttempt {
+    ConnectionAttempt(const IPEndPoint endpoint, int result)
+        : endpoint(endpoint), result(result) {}
+
+    // Address and port the socket layer attempted to connect to.
+    IPEndPoint endpoint;
+
+    // Net error indicating the result of that attempt.
+    int result;
+  };
+
+  typedef std::vector<ConnectionAttempt> ConnectionAttempts;
+
   ClientSocketHandle();
   ~ClientSocketHandle();
 
@@ -136,6 +151,9 @@ class NET_EXPORT ClientSocketHandle {
   void set_pending_http_proxy_connection(ClientSocketHandle* connection) {
     pending_http_proxy_connection_.reset(connection);
   }
+  void set_connection_attempts(ConnectionAttempts attempts) {
+    connection_attempts_ = attempts;
+  }
 
   // Only valid if there is no |socket_|.
   bool is_ssl_error() const {
@@ -151,6 +169,9 @@ class NET_EXPORT ClientSocketHandle {
   ClientSocketHandle* release_pending_http_proxy_connection() {
     return pending_http_proxy_connection_.release();
   }
+  const ConnectionAttempts& connection_attempts() {
+    return connection_attempts_;
+  }
 
   StreamSocket* socket() { return socket_.get(); }
 
@@ -200,6 +221,7 @@ class NET_EXPORT ClientSocketHandle {
   bool is_ssl_error_;
   HttpResponseInfo ssl_error_response_info_;
   scoped_ptr<ClientSocketHandle> pending_http_proxy_connection_;
+  std::vector<ConnectionAttempt> connection_attempts_;
   base::TimeTicks init_time_;
   base::TimeDelta setup_time_;