Add backtrace to Gitaly performance bar

This adds the backtrace to a table to show exactly where the Gitaly call
was made to make it easier to understand where the call originated.

This change also collapses the details in the same row to improve the
usability when there is a backtrace.

1 files changed, 6 insertions, 2 deletions

diff --git a/app/assets/stylesheets/performance_bar.scss b/app/assets/stylesheets/performance_bar.scss
index 9c01a2f8bda..5a8940ffd6d 100644
--- a/app/assets/stylesheets/performance_bar.scss
+++ b/app/assets/stylesheets/performance_bar.scss
@@ -79,8 +79,12 @@
   table {
     color: $black;
 
-    strong {
-      color: $black;
+    td {
+      vertical-align: top;
+    }
+
+    .backtrace-row {
+      display: none;
     }
   }