Remove enable_notifications build flag and define

chrome/browser/about_flags.cc

 // Copyright (c) 2012 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/browser/about_flags.h"
 
 #include <iterator>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 1674 matching lines @@
     {"enable-push-api-background-mode", IDS_FLAGS_PUSH_API_BACKGROUND_MODE_NAME,
      IDS_FLAGS_PUSH_API_BACKGROUND_MODE_DESCRIPTION, kOsMac | kOsWin | kOsLinux,
      ENABLE_DISABLE_VALUE_TYPE(switches::kEnablePushApiBackgroundMode,
                                switches::kDisablePushApiBackgroundMode)},
 #endif  // BUILDFLAG(ENABLE_BACKGROUND)
 #if defined(OS_CHROMEOS)
     {"cros-regions-mode", IDS_FLAGS_CROS_REGIONS_MODE_NAME,
      IDS_FLAGS_CROS_REGIONS_MODE_DESCRIPTION, kOsCrOS,
      MULTI_VALUE_TYPE(kCrosRegionsModeChoices)},
 #endif  // OS_CHROMEOS
-#if defined(ENABLE_NOTIFICATIONS) && defined(OS_ANDROID)
+#if defined(OS_ANDROID)
     {"enable-web-notification-custom-layouts",
      IDS_FLAGS_ENABLE_WEB_NOTIFICATION_CUSTOM_LAYOUTS_NAME,
      IDS_FLAGS_ENABLE_WEB_NOTIFICATION_CUSTOM_LAYOUTS_DESCRIPTION, kOsAndroid,
      ENABLE_DISABLE_VALUE_TYPE(switches::kEnableWebNotificationCustomLayouts,
                                switches::kDisableWebNotificationCustomLayouts)},
-#endif  // ENABLE_NOTIFICATIONS && OS_ANDROID
+#endif  // OS_ANDROID
 #if defined(OS_WIN)
     {"enable-appcontainer", IDS_FLAGS_ENABLE_APPCONTAINER_NAME,
      IDS_FLAGS_ENABLE_APPCONTAINER_DESCRIPTION, kOsWin,
      ENABLE_DISABLE_VALUE_TYPE(switches::kEnableAppContainer,
                                switches::kDisableAppContainer)},
 #endif  // OS_WIN
 #if defined(TOOLKIT_VIEWS) || defined(OS_ANDROID)
     {"enable-autofill-credit-card-upload",
      IDS_FLAGS_AUTOFILL_CREDIT_CARD_UPLOAD_NAME,
      IDS_FLAGS_AUTOFILL_CREDIT_CARD_UPLOAD_DESCRIPTION, kOsAll,
@@ skipping 607 matching lines @@
 const base::HistogramBase::Sample kBadSwitchFormatHistogramId = 0;
 
 const FeatureEntry* GetFeatureEntries(size_t* count) {
   *count = arraysize(kFeatureEntries);
   return kFeatureEntries;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags