Replace "external_install" boolean parameter with explicit enumeration in ExtensionUninstall method.

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

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/extensions/bookmark_app_bubble_view.h"
 
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/extensions/app_icon_loader_impl.h"
 #include "chrome/browser/extensions/bookmark_app_helper.h"
@@ skipping 179 matching lines @@
 
 void BookmarkAppBubbleView::WindowClosing() {
   // We have to reset |bookmark_app_bubble_| here, not in our destructor,
   // because we'll be destroyed asynchronously and the shown state will be
   // checked before then.
   DCHECK_EQ(bookmark_app_bubble_, this);
   bookmark_app_bubble_ = NULL;
 
   if (remove_app_) {
     profile_->GetExtensionService()->UninstallExtension(
-        extension_id_, false, NULL);
+        extension_id_, ExtensionService::kUninstallReasonDefault, NULL);
   } else {
     ApplyEdits();
   }
 }
 
 bool BookmarkAppBubbleView::AcceleratorPressed(
     const ui::Accelerator& accelerator) {
   if (accelerator.key_code() == ui::VKEY_RETURN) {
     HandleButtonPressed(add_button_);
   }
@@ skipping 43 matching lines @@
   if (extension && base::UTF8ToUTF16(extension->name()) == title_tf_->text())
     return;
 
   // Reinstall the app with an updated name.
   WebApplicationInfo install_info(web_app_info_);
   install_info.title = title_tf_->text();
 
   extensions::CreateOrUpdateBookmarkApp(profile_->GetExtensionService(),
                                         install_info);
 }