[Extensions] Fix crash in extension uninstall dialog

chrome/browser/ui/views/extensions/extension_uninstall_dialog_view.cc

Index: chrome/browser/ui/views/extensions/extension_uninstall_dialog_view.cc
diff --git a/chrome/browser/ui/views/extensions/extension_uninstall_dialog_view.cc b/chrome/browser/ui/views/extensions/extension_uninstall_dialog_view.cc
index d211a534abe14c336f4337304198e32a775ed248..c402e8b72e1fbd973f86ce8ac0aba46f2a4999d1 100644
--- a/chrome/browser/ui/views/extensions/extension_uninstall_dialog_view.cc
+++ b/chrome/browser/ui/views/extensions/extension_uninstall_dialog_view.cc
@@ -69,8 +69,7 @@ class ExtensionUninstallDialogDelegateView : public views::DialogDelegateView {
  public:
   ExtensionUninstallDialogDelegateView(
       ExtensionUninstallDialogViews* dialog_view,
-      const extensions::Extension* extension,
-      const extensions::Extension* triggering_extension,
+      bool triggered_by_extension,
       gfx::ImageSkia* image);
   ~ExtensionUninstallDialogDelegateView() override;
 
@@ -135,7 +134,7 @@ void ExtensionUninstallDialogViews::Show() {
   }
 
   view_ = new ExtensionUninstallDialogDelegateView(
-      this, extension_, triggering_extension_, &icon_);
+      this, triggering_extension_.get() != nullptr, &icon_);
   constrained_window::CreateBrowserModalDialogViews(view_, parent_)->Show();
 }
 
@@ -162,11 +161,10 @@ void ExtensionUninstallDialogViews::ExtensionUninstallCanceled() {
 
 ExtensionUninstallDialogDelegateView::ExtensionUninstallDialogDelegateView(
     ExtensionUninstallDialogViews* dialog_view,
-    const extensions::Extension* extension,
-    const extensions::Extension* triggering_extension,
+    bool triggered_by_extension,
     gfx::ImageSkia* image)
     : dialog_(dialog_view),
-      triggered_by_extension_(triggering_extension != NULL),
+      triggered_by_extension_(triggered_by_extension),
       report_abuse_checkbox_(nullptr) {
   // Scale down to icon size, but allow smaller icons (don't scale up).
   gfx::Size size(image->width(), image->height());