Expose the MacViewsWebUIDialogs feature flag to chrome://flags

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 180fcdc5abe71b064eab98c08898f26ba9460a62..ec958d84a38bf3446e518b7beed93e94f8ff52b9 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -88,6 +88,10 @@
 #include "third_party/cros_system_api/switches/chrome_switches.h"
 #endif
 
+#if defined(OS_MACOSX)
+#include "chrome/browser/ui/browser_dialogs.h"
+#endif
+
 #if defined(ENABLE_APP_LIST)
 #include "ui/app_list/app_list_switches.h"
 #endif
@@ -1576,9 +1580,12 @@ const FeatureEntry kFeatureEntries[] = {
      IDS_FLAGS_APP_WINDOW_CYCLING_DESCRIPTION, kOsMac,
      ENABLE_DISABLE_VALUE_TYPE(switches::kEnableAppWindowCycling,
                                switches::kDisableAppWindowCycling)},
-    {"mac-views-dialogs", IDS_FLAGS_MAC_VIEWS_DIALOGS_NAME,
-     IDS_FLAGS_MAC_VIEWS_DIALOGS_DESCRIPTION, kOsMac,
-     SINGLE_VALUE_TYPE(switches::kEnableMacViewsDialogs)},
+    {"mac-views-native-dialogs", IDS_FLAGS_MAC_VIEWS_NATIVE_DIALOGS_NAME,
+     IDS_FLAGS_MAC_VIEWS_NATIVE_DIALOGS_DESCRIPTION, kOsMac,
+     FEATURE_VALUE_TYPE(chrome::kMacViewsNativeDialogs)},
+    {"mac-views-webui-dialogs", IDS_FLAGS_MAC_VIEWS_WEBUI_DIALOGS_NAME,
+     IDS_FLAGS_MAC_VIEWS_WEBUI_DIALOGS_DESCRIPTION, kOsMac,
+     FEATURE_VALUE_TYPE(chrome::kMacViewsWebUIDialogs)},
 #endif
 #if defined(ENABLE_WEBVR)
     {"enable-webvr", IDS_FLAGS_WEBVR_NAME, IDS_FLAGS_WEBVR_DESCRIPTION, kOsAll,