Remove ownership of CPDFSDK_Document from CPDFXFA_Document

fpdfsdk/fpdfxfa/cpdfxfa_document.cpp

Index: fpdfsdk/fpdfxfa/cpdfxfa_document.cpp
diff --git a/fpdfsdk/fpdfxfa/cpdfxfa_document.cpp b/fpdfsdk/fpdfxfa/cpdfxfa_document.cpp
index e49cfde8c4892b6a423b94fd27570a86ebe54401..121d0604534a418a2829423a0d01f75ccab94b8e 100644
--- a/fpdfsdk/fpdfxfa/cpdfxfa_document.cpp
+++ b/fpdfsdk/fpdfxfa/cpdfxfa_document.cpp
@@ -33,6 +33,7 @@ CPDFXFA_Document::CPDFXFA_Document(std::unique_ptr<CPDF_Document> pPDFDoc,
                                    CPDFXFA_App* pProvider)
     : m_iDocType(DOCTYPE_PDF),
       m_pPDFDoc(std::move(pPDFDoc)),
+      m_pSDKDoc(nullptr),
       m_pXFADocView(nullptr),
       m_pApp(pProvider),
       m_nLoadStatus(FXFA_LOADSTATUS_PRELOAD),
@@ -42,6 +43,11 @@ CPDFXFA_Document::CPDFXFA_Document(std::unique_ptr<CPDF_Document> pPDFDoc,
 CPDFXFA_Document::~CPDFXFA_Document() {
   m_nLoadStatus = FXFA_LOADSTATUS_CLOSING;
 
+  if (m_pSDKDoc) {
+    m_pSDKDoc->ClearAllFocusedAnnots();
+    m_pSDKDoc = nullptr;
+  }
+
   if (m_pXFADoc) {
     CXFA_FFApp* pApp = m_pApp->GetXFAApp();
     if (pApp) {
@@ -191,10 +197,6 @@ void CPDFXFA_Document::RemovePage(CPDFXFA_Page* page) {
   m_XFAPageList.SetAt(page->GetPageIndex(), nullptr);
 }
 
-void CPDFXFA_Document::SetSDKDoc(std::unique_ptr<CPDFSDK_Document> pSDKDoc) {
-  m_pSDKDoc.reset(pSDKDoc.release());
-}
-
 void CPDFXFA_Document::ClearChangeMark() {
   if (m_pSDKDoc)
     m_pSDKDoc->ClearChangeMark();