DevTools: style selected call frames as arrows.

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

Index: third_party/WebKit/Source/devtools/front_end/ui/viewContainers.css
diff --git a/third_party/WebKit/Source/devtools/front_end/ui/viewContainers.css b/third_party/WebKit/Source/devtools/front_end/ui/viewContainers.css
index a0a595620dcf5b39e5e4620d6ee0fbadf8bab2fe..086f5cd58859f9787bc3d6c0d23f7206f92c8355 100644
--- a/third_party/WebKit/Source/devtools/front_end/ui/viewContainers.css
+++ b/third_party/WebKit/Source/devtools/front_end/ui/viewContainers.css
@@ -35,7 +35,7 @@
     display: flex;
     align-items: center;
     background-color: #eee;
-    height: 26px;
+    height: 22px;
     padding: 0 5px;
     border-top: 1px solid #dadada;
     white-space: nowrap;
@@ -49,6 +49,10 @@
     border-bottom: 1px solid #ddd;
 }
 
+.expandable-view-title .toolbar {
+    margin-top: -3px;
+}
+
 .expandable-view-title:not(.expanded) .toolbar {
     display: none;
 }