Bug 865487 - New Tab button should never get -moz-box-align: stretch in the first place, r=dao

browser/themes/linux/browser.css

@@ -1679,10 +1679,6 @@ toolbar[iconsize="small"] #bookmarks-menu-button[starred],
   -moz-image-region: auto;
 }
 
-.tabs-newtab-button {
-  -moz-box-align: center;
-}
-
 /* Tabstrip close button */
 .tabs-closebutton {
   list-style-image: url("moz-icon://stock/gtk-close?size=menu");

browser/themes/shared/tabs.inc.css

@@ -21,7 +21,6 @@
 .tabbrowser-tab,
 .tabs-newtab-button {
   -moz-appearance: none;
-  -moz-box-align: stretch;
   background-color: transparent;
   border-radius: 0;
   border-width: 0;
@@ -29,6 +28,10 @@
   padding: 0;
 }
 
+.tabbrowser-tab {
+  -moz-box-align: stretch;
+}
+
 /* The selected tab should appear above adjacent tabs and .tabs-newtab-button */
 .tabbrowser-tab[selected=true] {
   position: relative;

browser/themes/windows/browser.css

@@ -2077,10 +2077,6 @@ richlistitem[type~="action"][actiontype="switchtab"] > .ac-url-box > .ac-action-
   border-image: url("chrome://browser/skin/tabbrowser/tab-overflow-border.png") 0 2 0 2 fill;
 }
 
-.tabs-newtab-button {
-  -moz-box-align: center;
-}
-
 .tabs-newtab-button > .toolbarbutton-icon {
   margin-top: -1px;
   margin-bottom: -1px;