MD Settings: create a shared handler/browser proxy to control extensions

chrome/browser/ui/webui/settings/search_engines_handler.cc

 // Copyright 2016 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/settings/search_engines_handler.h"
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
-#include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search_engines/ui_thread_search_terms_data.h"
 #include "chrome/browser/ui/search_engines/template_url_table_model.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/search_engines/template_url.h"
 #include "components/search_engines/template_url_service.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_ui.h"
 #include "extensions/browser/extension_registry.h"
-#include "extensions/browser/extension_system.h"
 #include "extensions/common/extension.h"
 
 namespace {
 // The following strings need to match with the IDs of the paper-input elements
 // at settings/search_engines_page/add_search_engine_dialog.html.
 const char kSearchEngineField[] = "searchEngine";
 const char kKeywordField[] = "keyword";
 const char kQueryUrlField[] = "queryUrl";
 
 // Dummy number used for indicating that a new search engine is added.
@@ skipping 33 matching lines @@
       base::Bind(&SearchEnginesHandler::HandleSearchEngineEditStarted,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "searchEngineEditCancelled",
       base::Bind(&SearchEnginesHandler::HandleSearchEngineEditCancelled,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "searchEngineEditCompleted",
       base::Bind(&SearchEnginesHandler::HandleSearchEngineEditCompleted,
                  base::Unretained(this)));
-  web_ui()->RegisterMessageCallback(
-      "disableExtension",
-      base::Bind(&SearchEnginesHandler::HandleDisableExtension,
-                 base::Unretained(this)));
 }
 
 void SearchEnginesHandler::OnJavascriptAllowed() {
   list_controller_.table_model()->SetObserver(this);
 }
 
 void SearchEnginesHandler::OnJavascriptDisallowed() {
   list_controller_.table_model()->SetObserver(nullptr);
 }
 
@@ skipping 238 matching lines @@
   // Recheck validity. It's possible to get here with invalid input if e.g. the
   // user calls the right JS functions directly from the web inspector.
   if (CheckFieldValidity(kSearchEngineField, search_engine) &&
       CheckFieldValidity(kKeywordField, keyword) &&
       CheckFieldValidity(kQueryUrlField, query_url)) {
     edit_controller_->AcceptAddOrEdit(base::UTF8ToUTF16(search_engine),
                                       base::UTF8ToUTF16(keyword), query_url);
   }
 }
 
-void SearchEnginesHandler::HandleDisableExtension(
-    const base::ListValue* args) {
-  std::string extension_id;
-  CHECK(args->GetString(0, &extension_id));
-  ExtensionService* extension_service =
-      extensions::ExtensionSystem::Get(profile_)->extension_service();
-  DCHECK(extension_service);
-  extension_service->DisableExtension(
-      extension_id, extensions::Extension::DISABLE_USER_ACTION);
-}
-
 }  // namespace settings