Fail WebSocket channel when handshake fails.

net/websockets/websocket_stream.cc

Index: net/websockets/websocket_stream.cc
diff --git a/net/websockets/websocket_stream.cc b/net/websockets/websocket_stream.cc
index e81c24e706e702c83d152bd5671f75c27b90d78b..b245739aceb7bf7692b4875872c2b464a4d011ad 100644
--- a/net/websockets/websocket_stream.cc
+++ b/net/websockets/websocket_stream.cc
@@ -70,7 +70,20 @@ class StreamRequestImpl : public WebSocketStreamRequest {
   }
 
   void ReportFailure() {
-    connect_delegate_->OnFailure(kWebSocketErrorAbnormalClosure);
+    std::string failure_message;
+    if (create_helper_->stream()) {
+      failure_message = create_helper_->stream()->FailureMessage();
+    } else {
+      const URLRequestStatus& status = url_request_.status();
+      if (status.status() == URLRequestStatus::CANCELED) {
+        failure_message = "WebSocket opening handshake was canceled";
+      } else if (status.status() == URLRequestStatus::FAILED) {
+        failure_message =
+            std::string("Error in connection establishment: ") +
+            ErrorToString(status.error());
+      }
+    }
+    connect_delegate_->OnFailure(failure_message);
   }
 
  private: