Reland of [DevTools] Migrate SoftContextMenu to use GlassPane

third_party/WebKit/Source/devtools/front_end/ui/softContextMenu.css

Index: third_party/WebKit/Source/devtools/front_end/ui/softContextMenu.css
diff --git a/third_party/WebKit/Source/devtools/front_end/ui/softContextMenu.css b/third_party/WebKit/Source/devtools/front_end/ui/softContextMenu.css
index 516df5a0c030ac685104cf83c108cd003b6a751a..6acc3e4b2542a1b827f43f5f231f9f2d9ca16c9b 100644
--- a/third_party/WebKit/Source/devtools/front_end/ui/softContextMenu.css
+++ b/third_party/WebKit/Source/devtools/front_end/ui/softContextMenu.css
@@ -4,11 +4,10 @@
  * found in the LICENSE file.
  */
 
-:host {
-    position: absolute;
+.soft-context-menu {
     border: 1px solid rgba(196, 196, 196, 0.9);
     border-top: 1px solid rgba(196, 196, 196, 0.5);
-    /* NOTE: Keep padding top in sync with topPadding in SoftContextMenu.js */
+    /* NOTE: Keep padding in sync with padding adjustment in SoftContextMenu.js */
     padding: 4px 0 4px 0;
     border-radius: 4px;
     background-color: rgb(240, 240, 240);