[win] Enable ModuleDatabase behind a flag.

chrome/common/chrome_features.cc

 // Copyright 2016 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/chrome_features.h"
 
 #include "extensions/features/features.h"
 #include "ppapi/features/features.h"
 
 namespace features {
@@ skipping 127 matching lines @@
 const base::Feature kMediaRemoting{"MediaRemoting",
                                    base::FEATURE_DISABLED_BY_DEFAULT};
 const base::Feature kMediaRemotingEncrypted{"MediaRemotingEncrypted",
                                             base::FEATURE_DISABLED_BY_DEFAULT};
 #endif  // !defined(OS_ANDROID) && !defined(OS_IOS)
 
 // Enables or disables modal permission prompts.
 const base::Feature kModalPermissionPrompts{"ModalPermissionPrompts",
                                             base::FEATURE_DISABLED_BY_DEFAULT};
 
+#if defined(OS_WIN)
+// Enables or disables the ModuleDatabase backend for the conflicts UI.
+const base::Feature kModuleDatabase{"ModuleDatabase",
+                                    base::FEATURE_DISABLED_BY_DEFAULT};
+#endif
+
 // Enables the use of native notification centers instead of using the Message
 // Center for displaying the toasts.
 #if defined(OS_MACOSX)
 const base::Feature kNativeNotifications{"NativeNotifications",
                                          base::FEATURE_DISABLED_BY_DEFAULT};
 #endif  // defined(OS_MACOSX)
 
 // If enabled, the list of content suggestions on the New Tab page will contain
 // pages that the user downloaded for later use.
 const base::Feature kOfflinePageDownloadSuggestionsFeature{
@@ skipping 81 matching lines @@
 // Enables or disables emoji, handwriting and voice input on opt-in IME menu.
 const base::Feature kEHVInputOnImeMenu{"EmojiHandwritingVoiceInput",
                                        base::FEATURE_ENABLED_BY_DEFAULT};
 
 // Enables or disables flash component updates on Chrome OS.
 const base::Feature kCrosCompUpdates{"CrosCompUpdates",
                                      base::FEATURE_ENABLED_BY_DEFAULT};
 #endif  // defined(OS_CHROMEOS)
 
 }  // namespace features