win: Add Handles() to ProcessInfo

util/win/nt_internals.h

Index: util/win/nt_internals.h
diff --git a/util/win/nt_internals.h b/util/win/nt_internals.h
index 4743c4348dedfe3dc70e5cba498f5aba52a468f2..aab884f54cc4c43ecdb101a742fd126e472d2152 100644
--- a/util/win/nt_internals.h
+++ b/util/win/nt_internals.h
@@ -27,6 +27,9 @@ namespace crashpad {
 // winternal.h defines THREADINFOCLASS, but not all members.
 enum { ThreadBasicInformation = 0 };
 
+// winternal.h defines SYSTEM_INFORMATION_CLASS, but not all members.
+enum { SystemExtendedHandleInformation = 64 };
+
 NTSTATUS NtQuerySystemInformation(
     SYSTEM_INFORMATION_CLASS system_information_class,
     PVOID system_information,
@@ -45,4 +48,10 @@ NTSTATUS NtOpenThread(PHANDLE thread_handle,
                       POBJECT_ATTRIBUTES object_attributes,
                       const process_types::CLIENT_ID<Traits>* client_id);
 
+NTSTATUS NtQueryObject(HANDLE handle,
+                       OBJECT_INFORMATION_CLASS object_information_class,
+                       void* object_information,
+                       ULONG object_information_length,
+                       ULONG* return_length);
+
 }  // namespace crashpad