[Devtools] Fixed bug on hover waterfall in network panel

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 fe3c989f616cb0f815f023b0754466239c78abf2..1911410de7b797c6dd6a9610e63741512aadaedf 100644
--- a/third_party/WebKit/Source/devtools/front_end/network/networkLogView.css
+++ b/third_party/WebKit/Source/devtools/front_end/network/networkLogView.css
@@ -353,7 +353,7 @@
 }
 
 .network-waterfall-header:hover {
-    background-color: hsl(0, 0%, 90%);
+    background-color: hsla(0, 0%, 10%, 0.1);
 }
 
 .network-waterfall-header div {
@@ -367,6 +367,10 @@
     font-size: 11px;
 }
 
+.network-waterfall-header:hover .sort-order-icon-container {
+    background-color: hsl(0, 0%, 90%);
+}
+
 .network-waterfall-header .sort-order-icon-container {
     position: absolute;
     top: 1px;