[DevTools] Migrate StylesSidebarPane to TreeOutlineInShadow.

third_party/WebKit/Source/devtools/front_end/elements/stylesSectionTree.css

+/*
+ * Copyright 2016 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+.tree-outline {
+    padding: 0;
+}
+
+.tree-outline li.not-parsed-ok {
+    margin-left: 0;
+}
+
+.tree-outline li.filter-match {
+    background-color: rgba(255, 255, 0, 0.5);
+}
+
+:host-context(.-theme-with-dark-background) .tree-outline li.filter-match {
+    background-color: hsla(133, 100%, 30%, 0.5);
+}
+
+.tree-outline li.overloaded.filter-match {
+    background-color: rgba(255, 255, 0, 0.25);
+}
+
+:host-context(.-theme-with-dark-background) .tree-outline li.overloaded.filter-match {
+    background-color: hsla(133, 100%, 30%, 0.25);
+}
+
+.tree-outline li.not-parsed-ok .exclamation-mark {
+    display: inline-block;
+    position: relative;
+    width: 11px;
+    height: 10px;
+    margin: 0 7px 0 0;
+    top: 1px;
+    left: -36px; /* outdent to compensate for the top-level property indent */
+    -webkit-user-select: none;
+    cursor: default;
+    z-index: 1;
+}
+
+.tree-outline li {
+    margin-left: 12px;
+    padding-left: 22px;
+    white-space: normal;
+    text-overflow: ellipsis;
+    cursor: auto;
+    display: block;
+}
+
+.tree-outline li::before {
+    display: none;
+}
+
+.tree-outline li .webkit-css-property {
+    margin-left: -22px; /* outdent the first line of longhand properties (in an expanded shorthand) to compensate for the "padding-left" shift in .tree-outline li */
+}
+
+.tree-outline > li {
+    padding-left: 38px;
+    clear: both;
+    min-height: 14px;
+}
+
+.tree-outline > li .webkit-css-property {
+    margin-left: -38px; /* outdent the first line of the top-level properties to compensate for the "padding-left" shift in .tree-outline > li */
+}
+
+.tree-outline > li.child-editing {
+    padding-left: 8px;
+}
+
+.tree-outline > li.child-editing .webkit-css-property {
+    margin-left: 0;
+}
+
+.tree-outline li.child-editing {
+    word-wrap: break-word !important;
+    white-space: normal !important;
+    padding-left: 0;
+}
+
+ol:not(.tree-outline) {
+    display: none;
+    margin: 0;
+    -webkit-padding-start: 12px;
+    list-style: none;
+}
+
+ol.expanded {
+    display: block;
+}
+
+.tree-outline li .info {
+    padding-top: 4px;
+    padding-bottom: 3px;
+}
+
+.enabled-button {
+    visibility: hidden;
+    float: left;
+    font-size: 10px;
+    margin: 0;
+    vertical-align: top;
+    position: relative;
+    z-index: 1;
+    width: 18px;
+    left: -40px; /* original -2px + (-38px) to compensate for the first line outdent */
+    top: 1px;
+    height: 13px;
+}
+
+.tree-outline li.editing .enabled-button {
+    display: none !important;
+}
+
+.overloaded:not(.has-ignorable-error),
+.inactive,
+.disabled,
+.not-parsed-ok:not(.has-ignorable-error) {
+    text-decoration: line-through;
+}
+
+.has-ignorable-error .webkit-css-property {
+    color: inherit;
+}
+
+.implicit,
+.inherited {
+    opacity: 0.5;
+}
+
+.has-ignorable-error {
+    color: gray;
+}
+
+.tree-outline li.editing {
+    margin-left: 10px;
+    text-overflow: clip;
+}
+
+.tree-outline li.editing-sub-part {
+    padding: 3px 6px 8px 18px;
+    margin: -1px -6px -8px -6px;
+    text-overflow: clip;
+}
+
+:host-context(.no-affect) .tree-outline li {
+    opacity: 0.5;
+}
+
+:host-context(.no-affect) .tree-outline li.editing {
+    opacity: 1.0;
+}
+
+:host-context(.styles-panel-hovered:not(.read-only)) .webkit-css-property:hover,
+:host-context(.styles-panel-hovered:not(.read-only)) .value:hover {
+    text-decoration: underline;
+    cursor: default;
+}
+
+.styles-clipboard-only {
+    display: inline-block;
+    width: 0;
+    opacity: 0;
+    pointer-events: none;
+    white-space: pre;
+}
+
+.tree-outline li.child-editing .styles-clipboard-only {
+    display: none;
+}
+
+/* Matched styles */
+
+:host-context(.matched-styles) .tree-outline li {
+    margin-left: 0 !important;
+}
+
+:host-context(.matched-styles) .tree-outline li.parent .expand-element {
+    -webkit-user-select: none;
+    -webkit-mask-image: url(Images/toolbarButtonGlyphs.png);
+    -webkit-mask-size: 352px 168px;
+    margin-right: 2px;
+    margin-left: -6px;
+    background-color: #777;
+    width: 8px;
+    height: 10px;
+    display: inline-block;
+}
+
+@media (-webkit-min-device-pixel-ratio: 1.1) {
+:host-context(.matched-styles) .tree-outline li.parent .expand-element {
+    -webkit-mask-image: url(Images/toolbarButtonGlyphs_2x.png);
+}
+} /* media */
+
+:host-context(.matched-styles) .tree-outline li.parent .expand-element {
+    -webkit-mask-position: -4px -96px;
+}
+
+:host-context(.matched-styles) .tree-outline li.parent.expanded .expand-element {
+    -webkit-mask-position: -20px -96px;
+}
+
+:host-context(.matched-styles:not(.read-only):hover) .enabled-button {
+    visibility: visible;
+}
+
+:host-context(.matched-styles:not(.read-only)) .tree-outline li.disabled .enabled-button {
+    visibility: visible;
+}
+
+:host-context(.matched-styles) ol.expanded {
+    margin-left: 16px;
+}