LibWebView+UI: Migrate Ladybird's command line flags to LibWebView

Currently, if we want to add a new e.g. WebContent command line option,
we have to add it to all of Qt, AppKit, and headless-browser. (Or worse,
we only add it to one of these, and we have feature disparity).

To prevent this, this moves command line flags to WebView::Application.
The flags are assigned to ChromeOptions and WebContentOptions structs.
Each chrome can still add its platform-specific options; for example,
the Qt chrome has a flag to enable Qt networking.

There should be no behavior change here, other than that AppKit will now
support command line flags that were previously only supported by Qt.

Userland/Libraries/LibWebView/Options.h

@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2023, Andrew Kaster <akaster@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/ByteString.h>
+#include <AK/Optional.h>
+#include <AK/String.h>
+#include <AK/Vector.h>
+#include <LibURL/URL.h>
+
+namespace WebView {
+
+enum class NewWindow {
+    No,
+    Yes,
+};
+
+enum class ForceNewProcess {
+    No,
+    Yes,
+};
+
+enum class AllowPopups {
+    No,
+    Yes,
+};
+
+enum class DisableSQLDatabase {
+    No,
+    Yes,
+};
+
+struct ChromeOptions {
+    Vector<URL::URL> urls;
+    Vector<ByteString> raw_urls;
+    URL::URL new_tab_page_url;
+    Vector<ByteString> certificates {};
+    NewWindow new_window { NewWindow::No };
+    ForceNewProcess force_new_process { ForceNewProcess::No };
+    AllowPopups allow_popups { AllowPopups::No };
+    DisableSQLDatabase disable_sql_database { DisableSQLDatabase::No };
+    Optional<ByteString> webdriver_content_ipc_path {};
+};
+
+enum class EnableCallgrindProfiling {
+    No,
+    Yes,
+};
+
+enum class IsLayoutTestMode {
+    No,
+    Yes,
+};
+
+enum class UseLagomNetworking {
+    No,
+    Yes,
+};
+
+enum class WaitForDebugger {
+    No,
+    Yes,
+};
+
+enum class LogAllJSExceptions {
+    No,
+    Yes,
+};
+
+enum class EnableIDLTracing {
+    No,
+    Yes,
+};
+
+enum class EnableHTTPCache {
+    No,
+    Yes,
+};
+
+enum class ExposeInternalsObject {
+    No,
+    Yes,
+};
+
+struct WebContentOptions {
+    String command_line;
+    String executable_path;
+    Optional<ByteString> config_path {};
+    EnableCallgrindProfiling enable_callgrind_profiling { EnableCallgrindProfiling::No };
+    IsLayoutTestMode is_layout_test_mode { IsLayoutTestMode::No };
+    UseLagomNetworking use_lagom_networking { UseLagomNetworking::Yes };
+    WaitForDebugger wait_for_debugger { WaitForDebugger::No };
+    LogAllJSExceptions log_all_js_exceptions { LogAllJSExceptions::No };
+    EnableIDLTracing enable_idl_tracing { EnableIDLTracing::No };
+    EnableHTTPCache enable_http_cache { EnableHTTPCache::No };
+    ExposeInternalsObject expose_internals_object { ExposeInternalsObject::No };
+};
+
+}