Move enable extensions define to a build flag.

chrome/browser/ui/webui/constrained_web_dialog_ui.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/constrained_web_dialog_ui.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/lazy_instance.h"
 #include "base/macros.h"
 #include "base/values.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui.h"
+#include "extensions/features/features.h"
 #include "ui/web_dialogs/web_dialog_delegate.h"
 #include "ui/web_dialogs/web_dialog_ui.h"
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
 #include "chrome/browser/extensions/tab_helper.h"
 #endif
 
 using content::RenderViewHost;
 using content::WebContents;
 using content::WebUIMessageHandler;
 
 namespace {
 
 const char kConstrainedWebDialogDelegateUserDataKey[] =
@@ skipping 11 matching lines @@
  private:
   ConstrainedWebDialogDelegate* delegate_;  // unowned
 
   DISALLOW_COPY_AND_ASSIGN(ConstrainedWebDialogDelegateUserData);
 };
 
 }  // namespace
 
 ConstrainedWebDialogUI::ConstrainedWebDialogUI(content::WebUI* web_ui)
     : WebUIController(web_ui) {
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
   extensions::TabHelper::CreateForWebContents(web_ui->GetWebContents());
 #endif
 }
 
 ConstrainedWebDialogUI::~ConstrainedWebDialogUI() {
 }
 
 void ConstrainedWebDialogUI::RenderViewCreated(
     RenderViewHost* render_view_host) {
   // Add a "dialogClose" callback which matches WebDialogUI behavior.
@@ skipping 39 matching lines @@
 }
 
 ConstrainedWebDialogDelegate* ConstrainedWebDialogUI::GetConstrainedDelegate() {
   ConstrainedWebDialogDelegateUserData* user_data =
       static_cast<ConstrainedWebDialogDelegateUserData*>(
           web_ui()->GetWebContents()->
               GetUserData(&kConstrainedWebDialogDelegateUserDataKey));
 
   return user_data ? user_data->delegate() : NULL;
 }