[DevTools] Add grow mode to ListControl.

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

Index: third_party/WebKit/Source/devtools/front_end/ui_lazy/FilteredListWidget.js
diff --git a/third_party/WebKit/Source/devtools/front_end/ui_lazy/FilteredListWidget.js b/third_party/WebKit/Source/devtools/front_end/ui_lazy/FilteredListWidget.js
index 64dfe06f40bb5362507218f75fd22316e4c52355..3011a37b4581033d9515d06c16aa389f6bfe511c 100644
--- a/third_party/WebKit/Source/devtools/front_end/ui_lazy/FilteredListWidget.js
+++ b/third_party/WebKit/Source/devtools/front_end/ui_lazy/FilteredListWidget.js
@@ -87,7 +87,7 @@ UI.FilteredListWidget = class extends UI.VBox {
    * @override
    */
   willHide() {
-    this._list.setHeightMode(UI.ListHeightMode.Measured);
+    this._list.setMode(UI.ListMode.ViewportFixedItemsMeasured);

[caseq, 2016/12/29 19:25:31]

ditto. also, consider moving to wasShown()

     this._delegate.dispose();
     if (this._filterTimer)
       clearTimeout(this._filterTimer);