[Devtools] Fixed bug with ViewPortDataGrid not always revealing nodes

third_party/WebKit/Source/devtools/front_end/ui_lazy/ViewportDataGrid.js

Index: third_party/WebKit/Source/devtools/front_end/ui_lazy/ViewportDataGrid.js
diff --git a/third_party/WebKit/Source/devtools/front_end/ui_lazy/ViewportDataGrid.js b/third_party/WebKit/Source/devtools/front_end/ui_lazy/ViewportDataGrid.js
index f928eca6939f49cf0988181564f437fee906530a..4ab5b32df933bb9f183028a2a8c38b9159cba7df 100644
--- a/third_party/WebKit/Source/devtools/front_end/ui_lazy/ViewportDataGrid.js
+++ b/third_party/WebKit/Source/devtools/front_end/ui_lazy/ViewportDataGrid.js
@@ -238,6 +238,7 @@ WebInspector.ViewportDataGrid = class extends WebInspector.DataGrid {
       node.willAttach();
       element.classList.toggle('odd', (offset + i) % 2 === 0);
       tBody.insertBefore(element, previousElement.nextSibling);
+      node.revealed = true;
       previousElement = element;
     }