Second try at fixing location icon view issue on Linux.

Bug: 1161143
Change-Id: I52317cbd7b760218036a3cb99a9e53f6e5ed1e97
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2603120
Commit-Queue: Evan Stade <estade@chromium.org>
Reviewed-by: Justin Donnelly <jdonnelly@chromium.org>
Cr-Commit-Position: refs/heads/master@{#840268}

chrome/browser/ui/views/location_bar/location_icon_view.cc

@@ -76,9 +76,10 @@ bool LocationIconView::IsBubbleShowing() const {
 }
 
 bool LocationIconView::OnMousePressed(const ui::MouseEvent& event) {
-  delegate_->OnLocationIconPressed(event);
-
   IconLabelBubbleView::OnMousePressed(event);
+  delegate_->OnLocationIconPressed(event);
+  // Since OnLocationIconPressed() runs a nested message loop on Linux, |this|
+  // may be deleted by now.
   return true;
 }