Split fwl/core class pt II.

xfa/fwl/core/ifwl_widgetmgrdelegate.h

+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef XFA_FWL_CORE_IFWL_WIDGETMGRDELEGATE_H_
+#define XFA_FWL_CORE_IFWL_WIDGETMGRDELEGATE_H_
+
+class CFWL_Message;
+class CFX_Graphics;
+class CFX_Matrix;
+class IFWL_Widget;
+
+class IFWL_WidgetMgrDelegate {
+ public:
+  virtual void OnSetCapability(uint32_t dwCapability) = 0;
+  virtual void OnProcessMessageToForm(CFWL_Message* pMessage) = 0;
+  virtual void OnDrawWidget(IFWL_Widget* pWidget,
+                            CFX_Graphics* pGraphics,
+                            const CFX_Matrix* pMatrix) = 0;
+};
+
+#endif  // XFA_FWL_CORE_IFWL_WIDGETMGRDELEGATE_H_