restoring public api

Author: smnwttbr

Packages/com.unity.inputsystem/InputSystem/Editor/ControlPicker/InputControlPicker.cs

@@ -5,8 +5,32 @@
 
 namespace UnityEngine.InputSystem.Editor
 {
-    public sealed class InputControlPicker
+    /// <summary>
+    /// A popup that allows picking input controls graphically.
+    /// </summary>
+    public sealed class InputControlPicker : IDisposable
     {
+        public InputControlPicker(Mode mode, Action<string> onPick, InputControlPickerState state)
+        {
+            m_State = state ?? new InputControlPickerState();
+            m_Dropdown = new InputControlPickerDropdown(state, onPick, mode: mode);
+        }
+
+        public void Show(Rect rect)
+        {
+            m_Dropdown.Show(rect);
+        }
+
+        public void Dispose()
+        {
+            m_Dropdown?.Dispose();
+        }
+
+        public InputControlPickerState state => m_State;
+
+        private readonly InputControlPickerDropdown m_Dropdown;
+        private readonly InputControlPickerState m_State;
+
         public enum Mode
         {
             PickControl,