Reduce webkit CSS prefixes in ui/ styles

ui/webui/resources/css/tabs.css

Index: ui/webui/resources/css/tabs.css
diff --git a/ui/webui/resources/css/tabs.css b/ui/webui/resources/css/tabs.css
index 1a8e975cdbe914a45b3d11000afc0a6d1309ab5f..856901d3463356bcdc16715e81f1da730f6b81fd 100644
--- a/ui/webui/resources/css/tabs.css
+++ b/ui/webui/resources/css/tabs.css
@@ -29,7 +29,7 @@ tabs.new-style-tabs {
 
 tabs > * {
   -webkit-margin-start: 5px;
-  -webkit-transition: border-color 150ms, background-color 150ms;
+  transition: border-color 150ms, background-color 150ms;
   background: rgba(160, 160, 160, .3);
   border: 1px solid rgba(160, 160, 160, .3);
   border-bottom: 0;
@@ -44,7 +44,7 @@ tabs > * {
 
 tabs.new-style-tabs > * {
   -webkit-margin-start: 0;
-  -webkit-transition: none;
+  transition: none;
   background: #fbfbfb;
   border: 1px solid #fbfbfb;
   border-bottom: 0;
@@ -72,7 +72,7 @@ tabs.new-style-tabs > :not([selected]):hover {
 }
 
 tabs > [selected] {
-  -webkit-transition: none;
+  transition: none;
   background: white;
   border-color: rgb(160, 160, 160);
   margin-bottom: -1px;