Split fwl/core class pt I.

xfa/fwl/core/ifwl_form.h

Index: xfa/fwl/core/ifwl_form.h
diff --git a/xfa/fwl/core/ifwl_form.h b/xfa/fwl/core/ifwl_form.h
index d4244d535474f8be8162bb40ef4c81aaa59eb29b..3c51ee3c0cb437a47e417db570dc2a685d6d25cd 100644
--- a/xfa/fwl/core/ifwl_form.h
+++ b/xfa/fwl/core/ifwl_form.h
@@ -28,33 +28,6 @@
 #define FWL_UseMacSystemBorder
 #endif
 
-#define FWL_SYSBUTTONSTATE_Hover 0x0001
-#define FWL_SYSBUTTONSTATE_Pressed 0x0002
-#define FWL_SYSBUTTONSTATE_Disabled 0x0010
-
-enum FWL_FORMSIZE {
-  FWL_FORMSIZE_Manual = 0,
-  FWL_FORMSIZE_Width,
-  FWL_FORMSIZE_Height,
-  FWL_FORMSIZE_All,
-};
-
-class CFWL_SysBtn {
- public:
-  CFWL_SysBtn();
-
-  bool IsDisabled() const;
-  uint32_t GetPartState() const;
-
-  void SetNormal();
-  void SetPressed();
-  void SetHover();
-  void SetDisabled(bool bDisabled);
-
-  CFX_RectF m_rtBtn;
-  uint32_t m_dwState;
-};
-
 enum FORM_RESIZETYPE {
   FORM_RESIZETYPE_None = 0,
   FORM_RESIZETYPE_Cap,