ToolbarButton: Reset menu runner before deleting its menu's delegate

chrome/test/base/view_event_test_base.cc

Index: chrome/test/base/view_event_test_base.cc
diff --git a/chrome/test/base/view_event_test_base.cc b/chrome/test/base/view_event_test_base.cc
index 869179fd8cd7565ab48e42770682e1b754d81f8b..0b86478249d5aa3b89e52a313a29cade4038cb21 100644
--- a/chrome/test/base/view_event_test_base.cc
+++ b/chrome/test/base/view_event_test_base.cc
@@ -31,6 +31,12 @@ class TestView : public views::View {
   }
 
   void Layout() override {
+    // Permit a test to remove the view being tested from the hierarchy, then
+    // still handle a _NET_WM_STATE event on Linux during teardown that triggers
+    // layout.
+    if (!has_children())
+      return;
+
     View* child_view = child_at(0);
     child_view->SetBounds(0, 0, width(), height());
   }