Line-height style shouldn't apply to option elements

BUG=410316

Review URL: https://codereview.chromium.org/544473002

git-svn-id: svn://svn.chromium.org/blink/trunk@182386 bbb929c8-8fbe-4397-9dbb-9b2b20218538
diff --git a/Source/core/css/html.css b/Source/core/css/html.css
index f53470a..00df892 100644
--- a/Source/core/css/html.css
+++ b/Source/core/css/html.css
@@ -787,6 +787,11 @@
     min-height: 1.2em;
 }
 
+select:-internal-list-box option,
+select:-internal-list-box optgroup {
+    line-height: initial !important;
+}
+
 select:-internal-list-box:focus option:checked {
     background-color: -internal-active-list-box-selection !important;
     color: -internal-active-list-box-selection-text !important;