Move enable extensions define to a build flag.

chrome/browser/ui/webui/cookies_tree_model_util.cc

Index: chrome/browser/ui/webui/cookies_tree_model_util.cc
diff --git a/chrome/browser/ui/webui/cookies_tree_model_util.cc b/chrome/browser/ui/webui/cookies_tree_model_util.cc
index 51d4b6ab6071a0171a94282b397d362c2d6454ba..0559445f065e050ca8cf70a55fb4c6bd1b1dc3c1 100644
--- a/chrome/browser/ui/webui/cookies_tree_model_util.cc
+++ b/chrome/browser/ui/webui/cookies_tree_model_util.cc
@@ -20,12 +20,13 @@
 #include "content/public/browser/cache_storage_context.h"
 #include "content/public/browser/indexed_db_context.h"
 #include "content/public/browser/service_worker_context.h"
+#include "extensions/features/features.h"
 #include "net/cookies/canonical_cookie.h"
 #include "storage/common/fileapi/file_system_types.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/text/bytes_formatting.h"
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
 #include "extensions/common/extension_set.h"
 #endif
 
@@ -37,7 +38,7 @@ const char kKeyIcon[] = "icon";
 const char kKeyType[] = "type";
 const char kKeyHasChildren[] = "hasChildren";
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
 const char kKeyAppsProtectingThis[] = "appsProtectingThis";
 #endif
 const char kKeyName[] = "name";
@@ -319,7 +320,7 @@ bool CookiesTreeModelUtil::GetCookieTreeNodeDictionary(
       break;
   }
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
   const extensions::ExtensionSet* protecting_apps =
       node.GetModel()->ExtensionsProtectingNode(node);
   if (protecting_apps && !protecting_apps->is_empty()) {