Fix Password Manager Performance Issues

chrome/browser/resources/options/password_manager.css

Index: chrome/browser/resources/options/password_manager.css
diff --git a/chrome/browser/resources/options/password_manager.css b/chrome/browser/resources/options/password_manager.css
index 1bb9997c9d528888265af7fccc7c95036456d91d..33bc94b2a597c0a8ceb7396ac406574f7ffe2f9d 100644
--- a/chrome/browser/resources/options/password_manager.css
+++ b/chrome/browser/resources/options/password_manager.css
@@ -25,3 +25,9 @@ html[dir=rtl] #password-search-column {
 #passwords-title {
   display: inline-block;
 }
+
+#saved-passwords-list,
+#password-exceptions-list {
+  max-height: 192px;  /* For performance (crbug.com/651049). */
+  min-height: 128px;  /* Smallest value rendering enough initial list items. */
+}