Move xfa/fwl/core to xfa/fwl.

xfa/fwl/cfwl_sysbtn.cpp

Index: xfa/fwl/cfwl_sysbtn.cpp
diff --git a/xfa/fwl/core/cfwl_sysbtn.cpp b/xfa/fwl/cfwl_sysbtn.cpp
similarity index 93%
rename from xfa/fwl/core/cfwl_sysbtn.cpp
rename to xfa/fwl/cfwl_sysbtn.cpp
index 0ccc4c4b1dd4dd95b6e1fd4f5f013d008ebb2e1b..6f78d0245dbf006e6dc45e0128c8f3f683a0c273 100644
--- a/xfa/fwl/core/cfwl_sysbtn.cpp
+++ b/xfa/fwl/cfwl_sysbtn.cpp
@@ -4,9 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#include "xfa/fwl/core/cfwl_sysbtn.h"
+#include "xfa/fwl/cfwl_sysbtn.h"
 
-#include "xfa/fwl/core/cfwl_themepart.h"
+#include "xfa/fwl/cfwl_themepart.h"
 
 CFWL_SysBtn::CFWL_SysBtn() {
   m_rtBtn.Set(0, 0, 0, 0);