It's going to be removed from Chromium, see https://crbug.com/812523.

/cc @electron/code-owners 
shell/browser/api/electron_api_app.cc
#include "content/public/browser/render_frame_host.h"
#include "content/public/common/content_switches.h"
#include "media/audio/audio_manager.h"
#include "net/ssl/client_cert_identity.h"
#include "net/ssl/ssl_cert_request_info.h"
#include "services/service_manager/sandbox/switches.h"
#include "shell/browser/api/electron_api_menu.h"
#include "shell/browser/api/electron_api_session.h"
#include "shell/browser/api/electron_api_web_contents.h"
#include "shell/browser/api/gpuinfo_manager.h"
#include "shell/browser/electron_browser_context.h"
#include "shell/browser/electron_browser_main_parts.h"
#include "shell/browser/electron_paths.h"
#include "shell/browser/login_handler.h"
#include "shell/browser/relauncher.h"
#include "shell/common/application_info.h"
#include "shell/common/electron_command_line.h"
#include "shell/common/gin_converters/callback_converter.h"
#include "shell/common/gin_converters/file_path_converter.h"
#include "shell/common/gin_converters/gurl_converter.h"
#include "shell/common/gin_converters/image_converter.h"
#include "shell/common/gin_converters/net_converter.h"
#include "shell/common/gin_converters/value_converter.h"
#include "shell/common/gin_helper/dictionary.h"
#include "shell/common/gin_helper/object_template_builder.h"
#include "shell/common/node_includes.h"
#include "shell/common/options_switches.h"
#include "ui/gfx/image/image.h"
#if defined(OS_WIN)
#include "base/strings/utf_string_conversions.h"