DevTools: Refactor memory counter display

Source/devtools/front_end/timeline/timelinePanel.css

Index: Source/devtools/front_end/timeline/timelinePanel.css
diff --git a/Source/devtools/front_end/timeline/timelinePanel.css b/Source/devtools/front_end/timeline/timelinePanel.css
index a85fb1ce32d2b73fe6686445a9eb5f36ad31c07d..7e909f8eba46b871209ce49ddb6a591a244d8ad6 100644
--- a/Source/devtools/front_end/timeline/timelinePanel.css
+++ b/Source/devtools/front_end/timeline/timelinePanel.css
@@ -458,28 +458,13 @@
 }
 
 .memory-counter-sidebar-info {
-    flex: 0 0 18px;
+    flex: 0 0 20px;
     margin-left: 5px;
     white-space: nowrap;
 }
 
-.memory-counter-sidebar-info .swatch {
-    margin-left: 1px;
-    margin-right: 2px;
-    width: 10px;
-    height: 10px;
-    position: relative;
-    top: 1px;
-    display: inline-block;
-    line-height: 1px;
-    background-image: none;
-    border: 1px solid rgba(0,0,0,0.3);
-    opacity: 0.5;
-    -webkit-user-select: none;
-}
-
-.memory-counter-sidebar-info .title {
-    margin: 4px;
+.memory-counter-sidebar-info .range {
+    margin: 0 4px;
 }
 
 .memory-counter-value {