Bug 1458375 - Remove empty binding attached to scrollbars. r=timdream

MozReview-Commit-ID: HD6OHIVIhrq

--HG--
extra : rebase_source : 7b3d137328355d4589a94649e07fb340bf92e664

toolkit/content/widgets/general.xml

@@ -9,10 +9,6 @@
    xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
    xmlns:xbl="http://www.mozilla.org/xbl">
 
-  <!-- This binding is needed on <scrollbar> to prevent content process
-       startup performance regression; to be removed in bug 1458375 -->
-  <binding id="empty"/>
-
   <binding id="basecontrol">
     <implementation implements="nsIDOMXULControlElement">
       <!-- public implementation -->

toolkit/themes/osx/global/nativescrollbars.css

@@ -7,7 +7,6 @@
 
 scrollbar {
   -moz-appearance: scrollbar;
-  -moz-binding: url("chrome://global/content/bindings/general.xml#empty");
   cursor: default;
   background-color: white;
 }

toolkit/themes/windows/global/xulscrollbars.css

@@ -13,7 +13,6 @@
 
 scrollbar {
   -moz-appearance: scrollbar-horizontal;
-  -moz-binding: url("chrome://global/content/bindings/general.xml#empty");
   cursor: default;
 }