Move enable extensions define to a build flag.

chrome/common/url_constants.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/common/url_constants.h"
 
 #include <algorithm>
 
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "chrome/common/features.h"
 #include "content/public/common/url_constants.h"
+#include "extensions/features/features.h"
 #include "printing/features/features.h"
 #include "url/url_util.h"
 
 namespace chrome {
 
 #if defined(OS_CHROMEOS)
 const char kCrosScheme[] = "cros";
 #endif
 
 #if defined(OS_ANDROID)
@@ skipping 684 matching lines @@
 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
     kChromeUILinuxProxyConfigHost,
     kChromeUISandboxHost,
 #endif
 #if defined(OS_WIN)
     kChromeUIConflictsHost,
 #endif
 #if !defined(DISABLE_NACL)
     kChromeUINaClHost,
 #endif
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
     kChromeUIExtensionsHost,
 #endif
 #if BUILDFLAG(ENABLE_PRINT_PREVIEW)
     kChromeUIPrintHost,
 #endif
 #if BUILDFLAG(ENABLE_SERVICE_DISCOVERY)
     kChromeUIDevicesHost,
 #endif
 #if defined(ENABLE_WEBRTC)
     kChromeUIWebRtcLogsHost,
@@ skipping 74 matching lines @@
 #endif
 
 const char kChooserUsbOverviewURL[] =
     "https://support.google.com/chrome?p=webusb";
 
 #if defined(OS_CHROMEOS)
 const char kEolNotificationURL[] = "https://www.google.com/chromebook/older/";
 #endif
 
 }  // namespace chrome