Use native implementation of dangerous download infobar

chrome/browser/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/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//chrome/common/features.gni")
@@ skipping 2981 matching lines @@
       "android/devtools_server.h",
       "android/document/document_web_contents_delegate.cc",
       "android/dom_distiller/distiller_ui_handle_android.cc",
       "android/dom_distiller/distiller_ui_handle_android.h",
       "android/download/android_download_manager_overwrite_infobar_delegate.cc",
       "android/download/android_download_manager_overwrite_infobar_delegate.h",
       "android/download/chrome_download_delegate.cc",
       "android/download/chrome_download_delegate.h",
       "android/download/chrome_download_manager_overwrite_infobar_delegate.cc",
       "android/download/chrome_download_manager_overwrite_infobar_delegate.h",
+      "android/download/dangerous_download_infobar_delegate.cc",
+      "android/download/dangerous_download_infobar_delegate.h",
       "android/download/download_controller.cc",
       "android/download/download_controller.h",
       "android/download/download_controller_base.cc",
       "android/download/download_controller_base.h",
       "android/download/download_manager_service.cc",
       "android/download/download_manager_service.h",
       "android/download/download_overwrite_infobar_delegate.cc",
       "android/download/download_overwrite_infobar_delegate.h",
       "android/download/mock_download_controller.cc",
       "android/download/mock_download_controller.h",
@@ skipping 1309 matching lines @@
   # linking all of the test support.
   static_library("pepper_cdm_test_constants") {
     testonly = true
     visibility = [ "//chrome/*" ]
     sources = [
       "media/pepper_cdm_test_constants.cc",
       "media/pepper_cdm_test_constants.h",
     ]
   }
 }