Split fwl/core class pt II.

xfa/fwl/core/ifwl_datetimepicker.h

Index: xfa/fwl/core/ifwl_datetimepicker.h
diff --git a/xfa/fwl/core/ifwl_datetimepicker.h b/xfa/fwl/core/ifwl_datetimepicker.h
index 9d7b83a6c898d8251c3731963f27b5b06b740236..21f5f4a28e950609499b89071474c21daf149d7a 100644
--- a/xfa/fwl/core/ifwl_datetimepicker.h
+++ b/xfa/fwl/core/ifwl_datetimepicker.h
@@ -35,17 +35,17 @@
 class IFWL_DateTimeEdit;
 class IFWL_FormProxy;
 
-class IFWL_DateTimePickerDP : public IFWL_Widget::DataProvider {
- public:
-  virtual void GetToday(IFWL_Widget* pWidget,
-                        int32_t& iYear,
-                        int32_t& iMonth,
-                        int32_t& iDay) = 0;
-};
-
 class IFWL_DateTimePicker : public IFWL_Widget,
                             public IFWL_MonthCalendar::DataProvider {
  public:
+  class DataProvider : public IFWL_Widget::DataProvider {
+   public:
+    virtual void GetToday(IFWL_Widget* pWidget,
+                          int32_t& iYear,
+                          int32_t& iMonth,
+                          int32_t& iDay) = 0;
+  };
+
   explicit IFWL_DateTimePicker(
       const IFWL_App* app,
       std::unique_ptr<CFWL_WidgetProperties> properties);