Move enable extensions define to a build flag.

chrome/browser/renderer_context_menu/context_menu_content_type_factory.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/renderer_context_menu/context_menu_content_type_factory.h"
 
 #include "base/bind.h"
 #include "chrome/common/url_constants.h"
 #include "components/renderer_context_menu/context_menu_content_type.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/url_constants.h"
+#include "extensions/features/features.h"
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
 #include "chrome/browser/app_mode/app_mode_utils.h"
 #include "chrome/browser/guest_view/web_view/context_menu_content_type_web_view.h"
 #include "chrome/browser/renderer_context_menu/context_menu_content_type_app_mode.h"
 #include "chrome/browser/renderer_context_menu/context_menu_content_type_extension_popup.h"
 #include "chrome/browser/renderer_context_menu/context_menu_content_type_panel.h"
 #include "chrome/browser/renderer_context_menu/context_menu_content_type_platform_app.h"
 #include "extensions/browser/guest_view/web_view/web_view_guest.h"
 #include "extensions/browser/view_type_utils.h"
 #include "extensions/common/extension.h"
 #endif
@@ skipping 26 matching lines @@
     ContextMenuContentType* content_type) {
   content_type->set_internal_resources_url_checker(
       base::Bind(&CheckInternalResourcesURL));
   return content_type;
 }
 
 // static
 ContextMenuContentType* ContextMenuContentTypeFactory::CreateInternal(
     content::WebContents* web_contents,
     const content::ContextMenuParams& params) {
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
   if (extensions::WebViewGuest::FromWebContents(web_contents))
     return new ContextMenuContentTypeWebView(web_contents, params);
 
   if (chrome::IsRunningInForcedAppMode())
     return new ContextMenuContentTypeAppMode(web_contents, params);
 
   const extensions::ViewType view_type = extensions::GetViewType(web_contents);
 
   if (view_type == extensions::VIEW_TYPE_APP_WINDOW ||
       view_type == extensions::VIEW_TYPE_LAUNCHER_PAGE)
     return new ContextMenuContentTypePlatformApp(web_contents, params);
 
   if (view_type == extensions::VIEW_TYPE_EXTENSION_POPUP)
     return new ContextMenuContentTypeExtensionPopup(web_contents, params);
 
   if (view_type == extensions::VIEW_TYPE_PANEL)
     return new ContextMenuContentTypePanel(web_contents, params);
 #endif
 
   return new ContextMenuContentType(web_contents, params, true);
 }