[Devtools] Change logic of DataGrid's padding-left for grouping

third_party/WebKit/Source/devtools/front_end/network/networkLogView.css

Index: third_party/WebKit/Source/devtools/front_end/network/networkLogView.css
diff --git a/third_party/WebKit/Source/devtools/front_end/network/networkLogView.css b/third_party/WebKit/Source/devtools/front_end/network/networkLogView.css
index c6372729bd2c8d63703c107ccd1f04276915bd68..2ce9a6308185a0b9d009c02f16809752e17d09a6 100644
--- a/third_party/WebKit/Source/devtools/front_end/network/networkLogView.css
+++ b/third_party/WebKit/Source/devtools/front_end/network/networkLogView.css
@@ -71,6 +71,10 @@
     vertical-align: middle;
 }
 
+.network-log-grid.data-grid tr:not(.parent) td.disclosure::before {
+    content: none;
+}
+
 .network-log-grid.data-grid .corner {
     display: none;
 }