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 1bdfe003dd463ade82fd8f5562b04c6f7b4978c1..ea49e952ce250437576cd0b94981b66a8f2592fb 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() {