Reimplement min-width: auto

Source/devtools/front_end/inspectorCommon.css

+body /deep/ * {
+    /* This is required for correct sizing of flex items because we rely
+     * on an old version of the flexbox spec.
+     * Longer-term we should remove this, see crbug.com/473625 */
+    min-width: 0;
+    min-height: 0;
+}
+
 html {
     height: 100%;
     overflow: hidden;
 }
 
 body {
     height: 100%;
     width: 100%;
     position: relative;
     overflow: hidden;
@@ skipping 155 matching lines @@
 html /deep/ .highlighted-search-result.current-search-result {
     border-radius: 1px;
     padding: 1px;
     margin: -1px;
     background-color: rgba(255, 127, 0, 0.8);
 }
 
 .overflow-auto {
     overflow: auto;
 }