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

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

Index: chrome/browser/ui/webui/settings/extension_control_handler.cc
diff --git a/chrome/browser/ui/webui/settings/extension_control_handler.cc b/chrome/browser/ui/webui/settings/extension_control_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..5439d599a88db5501086048d28c2ddd3f4727f16
--- /dev/null
+++ b/chrome/browser/ui/webui/settings/extension_control_handler.cc
@@ -0,0 +1,38 @@
+// 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/extension_control_handler.h"
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/logging.h"
+#include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/profiles/profile.h"
+#include "content/public/browser/web_ui.h"
+#include "extensions/browser/extension_system.h"
+#include "extensions/common/extension.h"
+
+namespace settings {
+
+ExtensionControlHandler::ExtensionControlHandler() {}
+ExtensionControlHandler::~ExtensionControlHandler() {}
+
+void ExtensionControlHandler::RegisterMessages() {
+  web_ui()->RegisterMessageCallback("disableExtension",
+      base::Bind(&ExtensionControlHandler::HandleDisableExtension,
+                 base::Unretained(this)));
+}
+
+void ExtensionControlHandler::HandleDisableExtension(
+    const base::ListValue* args) {
+  std::string extension_id;
+  CHECK(args->GetString(0, &extension_id));
+  ExtensionService* extension_service = extensions::ExtensionSystem::Get(
+      Profile::FromWebUI(web_ui()))->extension_service();
+  DCHECK(extension_service);
+  extension_service->DisableExtension(
+      extension_id, extensions::Extension::DISABLE_USER_ACTION);
+}
+
+}  // namespace settings