Move enable extensions define to a build flag.

chrome/browser/policy/managed_bookmarks_policy_handler_unittest.cc

Index: chrome/browser/policy/managed_bookmarks_policy_handler_unittest.cc
diff --git a/chrome/browser/policy/managed_bookmarks_policy_handler_unittest.cc b/chrome/browser/policy/managed_bookmarks_policy_handler_unittest.cc
index 9bf6384b686ff4fcf32dc2ead4aad718d1877c39..bba50c8328c012a55f762267073a6e9b8464f9e5 100644
--- a/chrome/browser/policy/managed_bookmarks_policy_handler_unittest.cc
+++ b/chrome/browser/policy/managed_bookmarks_policy_handler_unittest.cc
@@ -15,8 +15,9 @@
 #include "components/policy/core/common/policy_types.h"
 #include "components/policy/core/common/schema.h"
 #include "components/policy/policy_constants.h"
+#include "extensions/features/features.h"
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
 #include "extensions/common/value_builder.h"
 #endif
 
@@ -31,7 +32,7 @@ class ManagedBookmarksPolicyHandlerTest
   }
 };
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
 TEST_F(ManagedBookmarksPolicyHandlerTest, ApplyPolicySettings) {
   EXPECT_FALSE(store_->GetValue(bookmarks::prefs::kManagedBookmarks, NULL));
 
@@ -135,9 +136,9 @@ TEST_F(ManagedBookmarksPolicyHandlerTest, ApplyPolicySettings) {
           .Build());
   EXPECT_TRUE(pref_value->Equals(expected.get()));
 }
-#endif  // defined(ENABLE_EXTENSIONS)
+#endif  // BUILDFLAG(ENABLE_EXTENSIONS)
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
 TEST_F(ManagedBookmarksPolicyHandlerTest, ApplyPolicySettingsNoTitle) {
   EXPECT_FALSE(store_->GetValue(bookmarks::prefs::kManagedBookmarks, NULL));
 
@@ -175,7 +176,7 @@ TEST_F(ManagedBookmarksPolicyHandlerTest, ApplyPolicySettingsNoTitle) {
           .Build());
   EXPECT_TRUE(pref_value->Equals(expected.get()));
 }
-#endif  // defined(ENABLE_EXTENSIONS)
+#endif  // BUILDFLAG(ENABLE_EXTENSIONS)
 
 TEST_F(ManagedBookmarksPolicyHandlerTest, WrongPolicyType) {
   PolicyMap policy;
@@ -194,7 +195,7 @@ TEST_F(ManagedBookmarksPolicyHandlerTest, WrongPolicyType) {
   EXPECT_FALSE(store_->GetValue(bookmarks::prefs::kManagedBookmarks, NULL));
 }
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
 TEST_F(ManagedBookmarksPolicyHandlerTest, UnknownKeys) {
   PolicyMap policy;
   policy.Set(key::kManagedBookmarks, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
@@ -224,7 +225,7 @@ TEST_F(ManagedBookmarksPolicyHandlerTest, UnknownKeys) {
 }
 #endif
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
 TEST_F(ManagedBookmarksPolicyHandlerTest, BadBookmark) {
   PolicyMap policy;
   policy.Set(key::kManagedBookmarks, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,