Move xfa/fwl/core to xfa/fwl.

xfa/fwl/cfwl_messagekey.cpp

Index: xfa/fwl/cfwl_messagekey.cpp
diff --git a/xfa/fwl/core/cfwl_msgkey.cpp b/xfa/fwl/cfwl_messagekey.cpp
similarity index 55%
rename from xfa/fwl/core/cfwl_msgkey.cpp
rename to xfa/fwl/cfwl_messagekey.cpp
index 3eda29ab499cc5ef4a75a8641fc682d14e6cab4a..38d4ea0580ae797bdcd00a8e002f519c42a0a73c 100644
--- a/xfa/fwl/core/cfwl_msgkey.cpp
+++ b/xfa/fwl/cfwl_messagekey.cpp
@@ -4,17 +4,18 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#include "xfa/fwl/core/cfwl_msgkey.h"
+#include "xfa/fwl/cfwl_messagekey.h"
 
 #include <memory>
 
 #include "third_party/base/ptr_util.h"
 
-CFWL_MsgKey::CFWL_MsgKey(CFWL_Widget* pSrcTarget, CFWL_Widget* pDstTarget)
+CFWL_MessageKey::CFWL_MessageKey(CFWL_Widget* pSrcTarget,
+                                 CFWL_Widget* pDstTarget)
     : CFWL_Message(CFWL_Message::Type::Key, pSrcTarget, pDstTarget) {}
 
-CFWL_MsgKey::~CFWL_MsgKey() {}
+CFWL_MessageKey::~CFWL_MessageKey() {}
 
-std::unique_ptr<CFWL_Message> CFWL_MsgKey::Clone() {
-  return pdfium::MakeUnique<CFWL_MsgKey>(*this);
+std::unique_ptr<CFWL_Message> CFWL_MessageKey::Clone() {
+  return pdfium::MakeUnique<CFWL_MessageKey>(*this);
 }