Convert enable_plugins to a buildflag header.

chrome/browser/content_settings/content_settings_pref_provider_unittest.cc

Index: chrome/browser/content_settings/content_settings_pref_provider_unittest.cc
diff --git a/chrome/browser/content_settings/content_settings_pref_provider_unittest.cc b/chrome/browser/content_settings/content_settings_pref_provider_unittest.cc
index 829f061c67d8a5eec14d2ea3f3899dfc0a538080..2a70d88dd0d8bb5b647b07272507d5cee34ec74e 100644
--- a/chrome/browser/content_settings/content_settings_pref_provider_unittest.cc
+++ b/chrome/browser/content_settings/content_settings_pref_provider_unittest.cc
@@ -38,6 +38,7 @@
 #include "components/sync_preferences/pref_service_syncable.h"
 #include "components/sync_preferences/testing_pref_service_syncable.h"
 #include "content/public/test/test_browser_thread_bundle.h"
+#include "ppapi/features/features.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
@@ -337,7 +338,7 @@ TEST_F(PrefProviderTest, Patterns) {
   pref_content_settings_provider.ShutdownOnUIThread();
 }
 
-#if defined(ENABLE_PLUGINS)
+#if BUILDFLAG(ENABLE_PLUGINS)
 TEST_F(PrefProviderTest, ResourceIdentifier) {
   TestingProfile testing_profile;
   PrefProvider pref_content_settings_provider(testing_profile.GetPrefs(),
@@ -518,7 +519,7 @@ TEST_F(PrefProviderTest, ClearAllContentSettingsRules) {
   provider.SetWebsiteSetting(pattern, wildcard,
                              CONTENT_SETTINGS_TYPE_GEOLOCATION,
                              ResourceIdentifier(), value->DeepCopy());
-#if defined(ENABLE_PLUGINS)
+#if BUILDFLAG(ENABLE_PLUGINS)
   // Non-empty pattern, plugins, non-empty resource identifier.
   provider.SetWebsiteSetting(pattern, wildcard, CONTENT_SETTINGS_TYPE_PLUGINS,
                              res_id, value->DeepCopy());
@@ -538,7 +539,7 @@ TEST_F(PrefProviderTest, ClearAllContentSettingsRules) {
 
   provider.ClearAllContentSettingsRules(CONTENT_SETTINGS_TYPE_JAVASCRIPT);
   provider.ClearAllContentSettingsRules(CONTENT_SETTINGS_TYPE_GEOLOCATION);
-#if defined(ENABLE_PLUGINS)
+#if BUILDFLAG(ENABLE_PLUGINS)
   provider.ClearAllContentSettingsRules(CONTENT_SETTINGS_TYPE_PLUGINS);
 #endif
 
@@ -547,7 +548,7 @@ TEST_F(PrefProviderTest, ClearAllContentSettingsRules) {
   const char* empty_prefs[] = {
     registry->Get(CONTENT_SETTINGS_TYPE_JAVASCRIPT)->pref_name().c_str(),
     registry->Get(CONTENT_SETTINGS_TYPE_GEOLOCATION)->pref_name().c_str(),
-#if defined(ENABLE_PLUGINS)
+#if BUILDFLAG(ENABLE_PLUGINS)
     registry->Get(CONTENT_SETTINGS_TYPE_PLUGINS)->pref_name().c_str(),
 #endif
   };