Refactor safe-browsing build-config definitions

chrome/browser/extensions/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 
 assert(enable_extensions)
 
@@ skipping 149 matching lines @@
   }
 
   # chromeos uses its own global_shortcut_listener, _x11 is not necessary.
   if (is_chromeos || !use_x11) {
     sources -= [
       "global_shortcut_listener_x11.cc",
       "global_shortcut_listener_x11.h",
     ]
   }
 
-  if (safe_browsing_mode == 1) {
-    defines += [ "FULL_SAFE_BROWSING" ]
-  }
-  if (safe_browsing_mode == 2) {
-    defines += [ "MOBILE_SAFE_BROWSING" ]
-  }
-
   if (is_win || is_mac) {
     deps += [ "//components/wifi" ]
     sources += rebase_path(
             gypi_values.chrome_browser_extensions_networking_private_sources_winmac,
             ".",
             "//chrome")
   }
 
   if (is_win) {
     deps += [
@@ skipping 17 matching lines @@
   if (is_chromeos && use_ozone) {
     sources -= [ "global_shortcut_listener_chromeos.cc" ]
   }
   if (!use_ozone) {
     sources -= [ "global_shortcut_listener_ozone.cc" ]
   }
   if (enable_media_router) {
     defines += [ "ENABLE_MEDIA_ROUTER=1" ]
   }
 }