Web Inspector: Can't click on the lower half of "S" icon in JavaScrip…

…t Allocations timeline

https://bugs.webkit.org/show_bug.cgi?id=160743
<rdar://problem/27790098>

Reviewed by Timothy Hatcher.

"S" icons are covered by .scroll-container, which has `z-index: calc(var(--z-index-resizer) + 1)`.
Set larger z-index on the "S" icons.

* UserInterface/Views/HeapAllocationsTimelineOverviewGraph.css:
(.timeline-overview-graph.heap-allocations > img.snapshot):


Canonical link: https://commits.webkit.org/178853@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@204339 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Source/WebInspectorUI/ChangeLog

@@ -1,3 +1,17 @@
+2016-08-10  Nikita Vasilyev  <nvasilyev@apple.com>
+
+        Web Inspector: Can't click on the lower half of "S" icon in JavaScript Allocations timeline
+        https://bugs.webkit.org/show_bug.cgi?id=160743
+        <rdar://problem/27790098>
+
+        Reviewed by Timothy Hatcher.
+
+        "S" icons are covered by .scroll-container, which has `z-index: calc(var(--z-index-resizer) + 1)`.
+        Set larger z-index on the "S" icons.
+
+        * UserInterface/Views/HeapAllocationsTimelineOverviewGraph.css:
+        (.timeline-overview-graph.heap-allocations > img.snapshot):
+
 2016-08-08  Joseph Pecoraro  <pecoraro@apple.com>
 
         Web Inspector: Popover for Color Picker should update position when window resizes

Source/WebInspectorUI/UserInterface/Views/HeapAllocationsTimelineOverviewGraph.css

@@ -33,6 +33,9 @@
     top: 9px;
     width: 16px;
     height: 16px;
+
+    /* FIXME: Remove once https://webkit.org/b/147236 is fixed. */
+    z-index: calc(var(--z-index-resizer) + 2);
 }
 
 .timeline-overview-graph.heap-allocations > img.snapshot.invalid {