[Extensions] Fix crash in extension uninstall dialog

chrome/browser/extensions/extension_uninstall_dialog.cc

Index: chrome/browser/extensions/extension_uninstall_dialog.cc
diff --git a/chrome/browser/extensions/extension_uninstall_dialog.cc b/chrome/browser/extensions/extension_uninstall_dialog.cc
index 1e39567227cea2182e760d4483d381bc5b33eea1..0f9b7282e33fa9ffb958ef7aeaa067aec922f7e0 100644
--- a/chrome/browser/extensions/extension_uninstall_dialog.cc
+++ b/chrome/browser/extensions/extension_uninstall_dialog.cc
@@ -48,8 +48,6 @@ ExtensionUninstallDialog::ExtensionUninstallDialog(
     ExtensionUninstallDialog::Delegate* delegate)
     : profile_(profile),
       delegate_(delegate),
-      extension_(NULL),
-      triggering_extension_(NULL),
       ui_loop_(base::MessageLoop::current()) {
 }
 
@@ -71,7 +69,7 @@ void ExtensionUninstallDialog::ConfirmUninstall(const Extension* extension) {
                             ? extension_misc::EXTENSION_ICON_SMALL * 2
                             : extension_misc::EXTENSION_ICON_LARGE;
   ExtensionResource image = IconsInfo::GetIconResource(
-      extension_, icon_size, ExtensionIconSet::MATCH_BIGGER);
+      extension_.get(), icon_size, ExtensionIconSet::MATCH_BIGGER);
 
   // Load the image asynchronously. The response will be sent to OnImageLoaded.
   ImageLoader* loader = ImageLoader::Get(profile_);
@@ -83,7 +81,7 @@ void ExtensionUninstallDialog::ConfirmUninstall(const Extension* extension) {
       ImageLoader::ImageRepresentation::NEVER_RESIZE,
       gfx::Size(),
       ui::SCALE_FACTOR_100P));
-  loader->LoadImagesAsync(extension_,
+  loader->LoadImagesAsync(extension_.get(),
                           images_list,
                           base::Bind(&ExtensionUninstallDialog::OnImageLoaded,
                                      AsWeakPtr(),
@@ -130,7 +128,7 @@ std::string ExtensionUninstallDialog::GetHeadingText() {
 }
 
 bool ExtensionUninstallDialog::ShouldShowReportAbuseCheckbox() const {
-  return ManifestURL::UpdatesFromGallery(extension_);
+  return ManifestURL::UpdatesFromGallery(extension_.get());
 }
 
 void ExtensionUninstallDialog::OnDialogClosed(CloseAction action) {