Bug 1404497 - Don't hide the post-tabs titlebar placeholder in maximized windows. r=dao

MozReview-Commit-ID: 39x18t1GBRP

--HG--
extra : rebase_source : a5e382521626417829c5cc4bb4e6f1c9cbaed8ed

browser/base/content/browser.css

@@ -245,7 +245,6 @@ window:not([chromehidden~="toolbar"]) #nav-bar[nonemptyoverflow] > .overflow-but
 %endif
 %ifndef MOZ_WIDGET_COCOA
 #main-window:not([sizemode=normal]) .titlebar-placeholder[type="pre-tabs"],
-#main-window:not([sizemode=normal]) .titlebar-placeholder[type="post-tabs"],
 %endif
 #main-window:not([chromemargin]) > #titlebar,
 #main-window[inFullscreen] > #titlebar,