Bug 1270564 - Keep twisty-container size constant in Synced Tabs sidebar when resizing. r=markh

MozReview-Commit-ID: EcyLrizsg6h

--HG--
extra : rebase_source : 10374d42952bc0024bc661dabc56fcbd3560d3bf

browser/themes/osx/syncedtabs/sidebar.css

@@ -39,7 +39,7 @@ html {
 }
 
 .item.client .item-twisty-container {
-  width: 16px;
+  min-width: 16px;
   height: 16px;
   background-image: url("chrome://global/skin/tree/arrow-disclosure.svg#arrow-disclosure-expanded");
 }

browser/themes/windows/syncedtabs/sidebar.css

@@ -95,7 +95,7 @@ html {
   background-repeat: no-repeat;
   background-position: center;
   padding-top: 5px;
-  width: 9px; /* The image's width is 9 pixels */
+  min-width: 9px; /* The image's width is 9 pixels */
   height: 9px;
 }