DevTools: remove invalidateSize from Widget, make show/hideWidget receive no params.

third_party/WebKit/Source/devtools/front_end/ui/FilterBar.js

Index: third_party/WebKit/Source/devtools/front_end/ui/FilterBar.js
diff --git a/third_party/WebKit/Source/devtools/front_end/ui/FilterBar.js b/third_party/WebKit/Source/devtools/front_end/ui/FilterBar.js
index 6ea762162960432d3759b80151860f0b4099fcaf..9a758c29ac180672af79659209679296abfe6b62 100644
--- a/third_party/WebKit/Source/devtools/front_end/ui/FilterBar.js
+++ b/third_party/WebKit/Source/devtools/front_end/ui/FilterBar.js
@@ -95,9 +95,13 @@ UI.FilterBar = class extends UI.HBox {
   }
 
   _updateFilterBar() {
+    if (!this.parentWidget())
+      return;
     var visible = this._alwaysShowFilters || (this._filtersShown && this._enabled);
-    this.element.classList.toggle('hidden', !visible);
-    this.invalidateSize();
+    if (visible)
+      this.showWidget();
+    else
+      this.hideWidget();
   }
 
   _focusTextField() {