Move xfa/fxfa/include to xfa/fxfa

BUG=pdfium:611

Review-Url: https://codereview.chromium.org/2383593002
diff --git a/fpdfsdk/cpdfsdk_interform.cpp b/fpdfsdk/cpdfsdk_interform.cpp
index 7ecaeac..855dc96 100644
--- a/fpdfsdk/cpdfsdk_interform.cpp
+++ b/fpdfsdk/cpdfsdk_interform.cpp
@@ -40,10 +40,10 @@
 #include "fpdfsdk/cpdfsdk_xfawidget.h"
 #include "fpdfsdk/fpdfxfa/fpdfxfa_doc.h"
 #include "fpdfsdk/fpdfxfa/fpdfxfa_util.h"
-#include "xfa/fxfa/include/cxfa_eventparam.h"
-#include "xfa/fxfa/include/xfa_ffdocview.h"
-#include "xfa/fxfa/include/xfa_ffwidget.h"
-#include "xfa/fxfa/include/xfa_ffwidgethandler.h"
+#include "xfa/fxfa/cxfa_eventparam.h"
+#include "xfa/fxfa/xfa_ffdocview.h"
+#include "xfa/fxfa/xfa_ffwidget.h"
+#include "xfa/fxfa/xfa_ffwidgethandler.h"
 #endif  // PDF_ENABLE_XFA
 
 CPDFSDK_InterForm::CPDFSDK_InterForm(CPDFSDK_Document* pDocument)