Reduce webkit CSS prefixes in ui/ styles

ui/webui/resources/css/widgets.css

Index: ui/webui/resources/css/widgets.css
diff --git a/ui/webui/resources/css/widgets.css b/ui/webui/resources/css/widgets.css
index 0cd35701d8a6ffa4bfa0a34b0aafcb932a756e5f..db116b9031e69896286c3d24da750fec5704ba89 100644
--- a/ui/webui/resources/css/widgets.css
+++ b/ui/webui/resources/css/widgets.css
@@ -36,7 +36,6 @@ input[type='radio'] {
 select {
   min-height: 2em;
   min-width: 4em;
-  padding-top: 1px;
   padding-bottom: 1px;
 <if expr="is_win or is_macosx">
   /* The following platform-specific rule is necessary to get adjacent
@@ -44,6 +43,7 @@ select {
    * aligning on the text's baselines. */
   padding-bottom: 2px;
 </if>
+  padding-top: 1px;
 }
 
 :-webkit-any(button,
@@ -100,8 +100,8 @@ textarea {
   margin: 0;
   /* Use min-height to accommodate addditional padding for touch as needed. */
   min-height: 2em;
-  padding: 3px;
   outline: none;
+  padding: 3px;
 <if expr="is_win or is_macosx or is_ios">
   /* For better alignment between adjacent buttons and inputs. */
   padding-bottom: 4px;
@@ -235,7 +235,7 @@ input:disabled:-webkit-any([type='password'],
          input[type='button'],
          input[type='submit']):not(.custom-appearance)) {
   /* OVERRIDE */
-  -webkit-transition: border-color 200ms;
+  transition: border-color 200ms;

[Dan Beam, 2016/12/01 00:22:42]

nit: move to bottom

[Eric Willigers, 2016/12/02 11:24:00]

Done.

   /* We use border color because it follows the border radius (unlike outline).
    * This is particularly noticeable on mac. */
   border-color: rgb(77, 144, 254);