diff -r 000000000000 -r 6474c204b198 parser/html/nsHtml5ViewSourceUtils.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/parser/html/nsHtml5ViewSourceUtils.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,46 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+#include "nsHtml5ViewSourceUtils.h"
+#include "nsHtml5AttributeName.h"
+#include "mozilla/Preferences.h"
+
+// static
+nsHtml5HtmlAttributes*
+nsHtml5ViewSourceUtils::NewBodyAttributes()
+{
+  nsHtml5HtmlAttributes* bodyAttrs = new nsHtml5HtmlAttributes(0);
+  nsString* id = new nsString(NS_LITERAL_STRING("viewsource"));
+  bodyAttrs->addAttribute(nsHtml5AttributeName::ATTR_ID, id);
+
+  if (mozilla::Preferences::GetBool("view_source.wrap_long_lines", true)) {
+    nsString* klass = new nsString(NS_LITERAL_STRING("wrap"));
+    bodyAttrs->addAttribute(nsHtml5AttributeName::ATTR_CLASS, klass);
+  }
+
+  int32_t tabSize = mozilla::Preferences::GetInt("view_source.tab_size", 4);
+  if (tabSize > 0) {
+    nsString* style = new nsString(NS_LITERAL_STRING("-moz-tab-size: "));
+    style->AppendInt(tabSize);
+    bodyAttrs->addAttribute(nsHtml5AttributeName::ATTR_STYLE, style);
+  }
+
+  return bodyAttrs;
+}
+
+// static
+nsHtml5HtmlAttributes*
+nsHtml5ViewSourceUtils::NewLinkAttributes()
+{
+  nsHtml5HtmlAttributes* linkAttrs = new nsHtml5HtmlAttributes(0);
+  nsString* rel = new nsString(NS_LITERAL_STRING("stylesheet"));
+  linkAttrs->addAttribute(nsHtml5AttributeName::ATTR_REL, rel);
+  nsString* type = new nsString(NS_LITERAL_STRING("text/css"));
+  linkAttrs->addAttribute(nsHtml5AttributeName::ATTR_TYPE, type);
+  nsString* href = new nsString(
+      NS_LITERAL_STRING("resource://gre-resources/viewsource.css"));
+  linkAttrs->addAttribute(nsHtml5AttributeName::ATTR_HREF, href);
+  return linkAttrs;
+}