import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

browser/themes/shared/tab-selected.svg

@@ -0,0 +1,36 @@
+<!-- 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/. -->
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:svg="http://www.w3.org/2000/svg" width="30px" height="31px" preserveAspectRatio="none">
+  <defs>
+    <style>
+%filter substitution
+%ifdef XP_MACOSX
+%include ../osx/shared.inc
+%elif defined(MOZ_WIDGET_GTK)
+%include ../linux/linuxShared.inc
+%else
+%include ../windows/windowsShared.inc
+%endif
+      #tab-background-fill {
+        background-color: @fgTabBackgroundColor@;
+        background-image: @fgTabTexture@;
+        background-repeat: no-repeat;
+        height: 100%;
+        width: 100%;
+      }
+%ifdef XP_WIN
+      @media (-moz-windows-default-theme) and (-moz-os-version: windows-vista),
+             (-moz-windows-default-theme) and (-moz-os-version: windows-win7) {
+        #tab-background-fill {
+          background-color: @customToolbarColor@;
+        }
+      }
+%endif
+    </style>
+%include ../../base/content/tab-shape.inc.svg
+  </defs>
+  <foreignObject width="30" height="31" clip-path="url(#tab-curve-clip-path-@TAB_SIDE@)">
+    <div id="tab-background-fill" xmlns="http://www.w3.org/1999/xhtml"></div>
+  </foreignObject>
+</svg>