DevTools: Grey out outside parts of selection window on timeline overview.

third_party/WebKit/Source/devtools/front_end/ui_lazy/overviewGrid.css

Index: third_party/WebKit/Source/devtools/front_end/ui_lazy/overviewGrid.css
diff --git a/third_party/WebKit/Source/devtools/front_end/ui_lazy/overviewGrid.css b/third_party/WebKit/Source/devtools/front_end/ui_lazy/overviewGrid.css
index 595c5e4d801dabcd97f69dbcf73f4c1f9ad1a389..fd9141f10d64917e8c8d88a15f706c9ff2cee97e 100644
--- a/third_party/WebKit/Source/devtools/front_end/ui_lazy/overviewGrid.css
+++ b/third_party/WebKit/Source/devtools/front_end/ui_lazy/overviewGrid.css
@@ -13,52 +13,15 @@
     pointer-events: none;
 }
 
-.overview-grid-window {
-    background-color: white;
-    position: absolute;
-    left: 0;
-    right: 0;
-    top: 0;
-    height: 20px;
-    z-index: 150;
-}
-
-.overview-grid-dividers-background {
-    left: 0;
-    right: 0;
-    top: 0;
-    height: 20px;
-    background-color: black;
-    position: absolute;
-}
-
-.overview-grid-window-rulers {
-    top: 0;
-    bottom: 0;
-    position: absolute;
-    opacity: 0.2;
-    border-right: 1px solid black;
-    border-left: 1px solid black;
-    z-index: 250;
-    pointer-events: none;
-}
-
 .overview-grid-window-resizer {
     position: absolute;
-    top: 0;
+    top: -1px;
     height: 20px;
-    width: 5px;
-    margin-left: -2px;
-    margin-right: -3px;
+    width: 6px;
+    margin-left: -3px;
     background-color: rgb(153, 153, 153);
+    border: 1px solid white;
     z-index: 500;
-    border-radius: 2px;
-    box-shadow: white 1px 0 0, white -1px 0 0, white 0 1px 0, white 0 -1px 0;
-}
-
-.overview-grid-window-resizer-right {
-    margin-left: -3px;
-    margin-right: -2px;
 }
 
 .overview-grid-cursor-area {