LibCore+LibWebView: Move process statistics to LibCore

This will be needed to collect statistics from processes that do not
have anything to do with LibWebView. The ProcessInfo structure must be
virtual to allow callers to add application-specific information.

Userland/Libraries/LibWebView/ProcessInfo.h

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2024, Andrew Kaster <akaster@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Types.h>
+#include <LibCore/Platform/ProcessInfo.h>
+
+#if defined(AK_OS_MACH)
+#    include <LibCore/MachPort.h>
+#endif
+
+namespace WebView {
+
+enum class ProcessType {
+    Chrome,
+    WebContent,
+    WebWorker,
+    SQLServer,
+    RequestServer,
+    ImageDecoder,
+};
+
+struct ProcessInfo : public Core::Platform::ProcessInfo {
+    using Core::Platform::ProcessInfo::ProcessInfo;
+
+    ProcessInfo(ProcessType type, pid_t pid)
+        : Core::Platform::ProcessInfo(pid)
+        , type(type)
+    {
+    }
+
+    ProcessType type { ProcessType::WebContent };
+};
+
+}