PlzNavigate: Move navigation-level mixed content checks to the browser.

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 255 matching lines @@
     "conflicts/module_event_sink_impl_win.cc",
     "conflicts/module_event_sink_impl_win.h",
     "content_settings/chrome_content_settings_utils.cc",
     "content_settings/chrome_content_settings_utils.h",
     "content_settings/cookie_settings_factory.cc",
     "content_settings/cookie_settings_factory.h",
     "content_settings/host_content_settings_map_factory.cc",
     "content_settings/host_content_settings_map_factory.h",
     "content_settings/local_shared_objects_container.cc",
     "content_settings/local_shared_objects_container.h",
+    "content_settings/mixed_content_settings_tab_helper.cc",
+    "content_settings/mixed_content_settings_tab_helper.h",
     "content_settings/tab_specific_content_settings.cc",
     "content_settings/tab_specific_content_settings.h",
     "content_settings/web_site_settings_uma_util.cc",
     "content_settings/web_site_settings_uma_util.h",
     "crash_upload_list/crash_upload_list.cc",
     "crash_upload_list/crash_upload_list.h",
     "crash_upload_list/crash_upload_list_android.cc",
     "crash_upload_list/crash_upload_list_android.h",
     "custom_handlers/protocol_handler_registry.cc",
     "custom_handlers/protocol_handler_registry.h",
@@ skipping 4198 matching lines @@
       "media/pepper_cdm_test_constants.cc",
       "media/pepper_cdm_test_constants.h",
     ]
   }
 }
 
 service_manifest("preferences_manifest") {
   name = "preferences"
   source = "prefs/preferences_manifest.json"
 }