Merge CPDFSDK_Document into CPDFSDK_FormFillEnvironment

fpdfsdk/fpdfview.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "public/fpdfview.h"
 
 #include <memory>
 #include <utility>
@@ skipping 667 matching lines @@
 
     if (pPageView->IsLocked()) {
       pPageView->TakePageOwnership();
       return;
     }
 
     bool owned = pPageView->OwnsPage();
     // This will delete the |pPageView| object. We must cleanup the PageView
     // first because it will attempt to reset the View on the |pPage| during
     // destruction.
-    pPageView->GetFormFillEnv()->GetSDKDocument()->RemovePageView(pPage);
+    pPageView->GetFormFillEnv()->RemovePageView(pPage);
     // If the page was owned then the pageview will have deleted the page.
     if (owned)
       return;
   }
   delete pPage;
 #endif  // PDF_ENABLE_XFA
 }
 
 DLLEXPORT void STDCALL FPDF_CloseDocument(FPDF_DOCUMENT document) {
   delete UnderlyingFromFPDFDocument(document);
@@ skipping 431 matching lines @@
   if (!buffer) {
     *buflen = len;
   } else if (*buflen >= len) {
     memcpy(buffer, utf16Name.c_str(), len);
     *buflen = len;
   } else {
     *buflen = -1;
   }
   return (FPDF_DEST)pDestObj;
 }