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

third_party/WebKit/LayoutTests/inspector/components/widget-events.html

Index: third_party/WebKit/LayoutTests/inspector/components/widget-events.html
diff --git a/third_party/WebKit/LayoutTests/inspector/components/widget-events.html b/third_party/WebKit/LayoutTests/inspector/components/widget-events.html
index 4cf01ce30c4848e6b4c2864808e3c5dee25d84e9..482917f3addd8bb6626c1e950bad3fc1e3938b57 100644
--- a/third_party/WebKit/LayoutTests/inspector/components/widget-events.html
+++ b/third_party/WebKit/LayoutTests/inspector/components/widget-events.html
@@ -345,9 +345,9 @@ function test()
             var parentWidget1 = new TestWidget("Parent");
             var parentWidget2 = new TestWidget("Parent");
             var childWidget = new TestWidget("Child");
-            childWidget.attach(parentWidget1);
+            childWidget.attach(parentWidget1, parentWidget2.element);
             try {
-                childWidget.showWidget(parentWidget2.element);
+                childWidget.showWidget();
             } catch (e) {
                 InspectorTest.addResult(e);
             }