Revert 13676 - Revert 131665 - Add a preference for why an extension is disabled.

chrome/browser/ui/webui/extensions/extension_settings_handler.cc

 // Copyright (c) 2012 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/webui/extensions/extension_settings_handler.h"
 
 #include "base/auto_reset.h"
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 565 matching lines @@
 
   if (enable_str == "true") {
     ExtensionPrefs* prefs = extension_service_->extension_prefs();
     if (prefs->DidExtensionEscalatePermissions(extension_id)) {
       extensions::ShowExtensionDisabledDialog(
           extension_service_, Profile::FromWebUI(web_ui()), extension);
     } else {
       extension_service_->EnableExtension(extension_id);
     }
   } else {
-    extension_service_->DisableExtension(extension_id);
+    extension_service_->DisableExtension(
+        extension_id, Extension::DISABLE_USER_ACTION);
   }
 }
 
 void ExtensionSettingsHandler::HandleEnableIncognitoMessage(
     const ListValue* args) {
   CHECK_EQ(2U, args->GetSize());
   std::string extension_id, enable_str;
   CHECK(args->GetString(0, &extension_id));
   CHECK(args->GetString(1, &enable_str));
   const Extension* extension =
@@ skipping 215 matching lines @@
   if (!extension_uninstall_dialog_.get()) {
     extension_uninstall_dialog_.reset(
         ExtensionUninstallDialog::Create(Profile::FromWebUI(web_ui()), this));
   }
   return extension_uninstall_dialog_.get();
 }
 
 void ExtensionSettingsHandler::InspectExtensionHost(ExtensionHost* host) {
   DevToolsWindow::OpenDevToolsWindow(host->render_view_host());
 }