import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

toolkit/themes/windows/global/in-content/common.css

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+/* - 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 ../../../shared/in-content/common.inc.css
+
+xul|caption {
+  background-color: transparent;
+}
+
+xul|button,
+html|button,
+xul|colorpicker[type="button"],
+xul|menulist {
+  margin: 2px 4px;
+}
+
+xul|menulist:not([editable="true"]) > xul|*.menulist-dropmarker {
+  margin-top: 1px;
+  margin-bottom: 1px;
+}
+
+xul|checkbox {
+  padding-inline-start: 0;
+}
+
+@media not all and (-moz-windows-default-theme) {
+  xul|*.checkbox-check {
+    background-image: none !important;
+  }
+
+  xul|*.checkbox-check[checked] {
+    list-style-image: url("chrome://global/skin/in-content/check.svg#check-native");
+    background-color: -moz-dialog;
+  }
+}
+
+xul|radio {
+  -moz-binding: url("chrome://global/content/bindings/radio.xml#radio");
+  padding-inline-start: 0;
+}
+
+@media not all and (-moz-windows-default-theme) {
+  xul|*.radio-check {
+    background-image: none;
+  }
+
+  xul|*.radio-check[selected] {
+    list-style-image: url("chrome://global/skin/in-content/radio.svg#radio-native");
+    background-color: -moz-dialog;
+  }
+}
+
+xul|*.radio-icon,
+xul|*.checkbox-icon {
+  margin-inline-end: 0;
+}
+
+/* Never draw a border for the focusring, use outline instead */
+xul|*.button-box,
+xul|*.menulist-label-box,
+xul|*.radio-label-box,
+xul|*.checkbox-label-box {
+  border-style: none;
+}
+
+xul|button:-moz-focusring > xul|*.button-box,
+xul|menulist:-moz-focusring > xul|*.menulist-label-box,
+xul|radio[focused="true"] > xul|*.radio-label-box,
+html|input[type="checkbox"]:-moz-focusring + html|label:before,
+xul|checkbox:-moz-focusring > xul|*.checkbox-label-box {
+  outline: 1px dotted;
+}
+
+/* Use a 2px border so that selected row highlight is still visible behind
+    an existing high-contrast border that uses the background color */
+@media not all and (-moz-windows-default-theme) {
+  xul|treechildren::-moz-tree-row(selected),
+  xul|listbox xul|listitem[selected="true"] {
+     border: 2px dotted Highlight;
+  }
+}

toolkit/themes/windows/global/in-content/info-pages.css

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+%include ../../../shared/in-content/info-pages.inc.css