WebUI Dark Mode: fix bookmark star color on history page

R=hcarmona@chromium.org
BUG=923597

Change-Id: Ic6ecdee30e93de2745f42946d29836fa059e3b29
Reviewed-on: https://chromium-review.googlesource.com/c/1468761
Commit-Queue: Dan Beam <dbeam@chromium.org>
Auto-Submit: Dan Beam <dbeam@chromium.org>
Reviewed-by: Hector Carmona <hcarmona@chromium.org>
Cr-Commit-Position: refs/heads/master@{#631825}
diff --git a/chrome/browser/resources/history/shared_vars.html b/chrome/browser/resources/history/shared_vars.html
index b4cc65b..73ce890 100644
--- a/chrome/browser/resources/history/shared_vars.html
+++ b/chrome/browser/resources/history/shared_vars.html
@@ -34,6 +34,7 @@
 
   html[dark] {
     --history-item-time-color: var(--cr-secondary-text-color);
+    --interactive-color: var(--google-blue-refresh-300);
     --separator-color: var(--cr-separator-color);
     --sidebar-footer-text-color: rgba(255, 255, 255, 0.6);
     --sidebar-unselected-color: var(--cr-secondary-text-color);