Rename fpdfsdk/fpdf* files to be consistent

This CL makes the fpdfsdk/fpdf* files to be consistently prefixed with
fpdf_ instead of randomly dropping the _.

Change-Id: I23e3c8a0831b56bcd17c788d9fe874b2ab8b24fc
Reviewed-on: https://pdfium-review.googlesource.com/29390
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>

1 files changed, 0 insertions, 1158 deletions

diff --git a/fpdfsdk/fpdfview.cpp b/fpdfsdk/fpdfview.cpp
deleted file mode 100644
index 187db9b126..0000000000
--- a/fpdfsdk/fpdfview.cpp
+++ /dev/null
@@ -1,1158 +0,0 @@
-// 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 <utility>
-#include <vector>
-
-#include "core/fpdfapi/cpdf_modulemgr.h"
-#include "core/fpdfapi/cpdf_pagerendercontext.h"
-#include "core/fpdfapi/page/cpdf_page.h"
-#include "core/fpdfapi/parser/cpdf_array.h"
-#include "core/fpdfapi/parser/cpdf_dictionary.h"
-#include "core/fpdfapi/parser/cpdf_document.h"
-#include "core/fpdfapi/parser/cpdf_name.h"
-#include "core/fpdfapi/parser/cpdf_parser.h"
-#include "core/fpdfapi/parser/fpdf_parser_decode.h"
-#include "core/fpdfapi/render/cpdf_progressiverenderer.h"
-#include "core/fpdfapi/render/cpdf_rendercontext.h"
-#include "core/fpdfapi/render/cpdf_renderoptions.h"
-#include "core/fpdfdoc/cpdf_annotlist.h"
-#include "core/fpdfdoc/cpdf_nametree.h"
-#include "core/fpdfdoc/cpdf_occontext.h"
-#include "core/fpdfdoc/cpdf_viewerpreferences.h"
-#include "core/fxcrt/fx_stream.h"
-#include "core/fxcrt/fx_system.h"
-#include "core/fxge/cfx_defaultrenderdevice.h"
-#include "core/fxge/cfx_gemodule.h"
-#include "core/fxge/cfx_renderdevice.h"
-#include "fpdfsdk/cpdfsdk_customaccess.h"
-#include "fpdfsdk/cpdfsdk_formfillenvironment.h"
-#include "fpdfsdk/cpdfsdk_helpers.h"
-#include "fpdfsdk/cpdfsdk_memoryaccess.h"
-#include "fpdfsdk/cpdfsdk_pageview.h"
-#include "fpdfsdk/ipdfsdk_pauseadapter.h"
-#include "fxjs/ijs_runtime.h"
-#include "public/fpdf_formfill.h"
-#include "third_party/base/ptr_util.h"
-
-#ifdef PDF_ENABLE_XFA
-#include "fpdfsdk/fpdfxfa/cpdfxfa_context.h"
-#include "fpdfsdk/fpdfxfa/cpdfxfa_page.h"
-#include "fxbarcode/BC_Library.h"
-#endif  // PDF_ENABLE_XFA
-
-#if _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_
-#include "core/fxge/cfx_windowsrenderdevice.h"
-#include "public/fpdf_edit.h"
-
-// These checks are here because core/ and public/ cannot depend on each other.
-static_assert(WindowsPrintMode::kModeEmf == FPDF_PRINTMODE_EMF,
-              "WindowsPrintMode::kModeEmf value mismatch");
-static_assert(WindowsPrintMode::kModeTextOnly == FPDF_PRINTMODE_TEXTONLY,
-              "WindowsPrintMode::kModeTextOnly value mismatch");
-static_assert(WindowsPrintMode::kModePostScript2 == FPDF_PRINTMODE_POSTSCRIPT2,
-              "WindowsPrintMode::kModePostScript2 value mismatch");
-static_assert(WindowsPrintMode::kModePostScript3 == FPDF_PRINTMODE_POSTSCRIPT3,
-              "WindowsPrintMode::kModePostScript3 value mismatch");
-#endif
-
-namespace {
-
-bool g_bLibraryInitialized = false;
-
-void RenderPageImpl(CPDF_PageRenderContext* pContext,
-                    CPDF_Page* pPage,
-                    const CFX_Matrix& matrix,
-                    const FX_RECT& clipping_rect,
-                    int flags,
-                    bool bNeedToRestore,
-                    IPDFSDK_PauseAdapter* pause) {
-  if (!pContext->m_pOptions)
-    pContext->m_pOptions = pdfium::MakeUnique<CPDF_RenderOptions>();
-
-  uint32_t option_flags = pContext->m_pOptions->GetFlags();
-  if (flags & FPDF_LCD_TEXT)
-    option_flags |= RENDER_CLEARTYPE;
-  else
-    option_flags &= ~RENDER_CLEARTYPE;
-
-  if (flags & FPDF_NO_NATIVETEXT)
-    option_flags |= RENDER_NO_NATIVETEXT;
-  if (flags & FPDF_RENDER_LIMITEDIMAGECACHE)
-    option_flags |= RENDER_LIMITEDIMAGECACHE;
-  if (flags & FPDF_RENDER_FORCEHALFTONE)
-    option_flags |= RENDER_FORCE_HALFTONE;
-#ifndef PDF_ENABLE_XFA
-  if (flags & FPDF_RENDER_NO_SMOOTHTEXT)
-    option_flags |= RENDER_NOTEXTSMOOTH;
-  if (flags & FPDF_RENDER_NO_SMOOTHIMAGE)
-    option_flags |= RENDER_NOIMAGESMOOTH;
-  if (flags & FPDF_RENDER_NO_SMOOTHPATH)
-    option_flags |= RENDER_NOPATHSMOOTH;
-#endif  // PDF_ENABLE_XFA
-  pContext->m_pOptions->SetFlags(option_flags);
-
-  // Grayscale output
-  if (flags & FPDF_GRAYSCALE)
-    pContext->m_pOptions->SetColorMode(CPDF_RenderOptions::kGray);
-
-  const CPDF_OCContext::UsageType usage =
-      (flags & FPDF_PRINTING) ? CPDF_OCContext::Print : CPDF_OCContext::View;
-  pContext->m_pOptions->SetOCContext(
-      pdfium::MakeRetain<CPDF_OCContext>(pPage->m_pDocument.Get(), usage));
-
-  pContext->m_pDevice->SaveState();
-  pContext->m_pDevice->SetClip_Rect(clipping_rect);
-  pContext->m_pContext = pdfium::MakeUnique<CPDF_RenderContext>(pPage);
-  pContext->m_pContext->AppendLayer(pPage, &matrix);
-
-  if (flags & FPDF_ANNOT) {
-    pContext->m_pAnnots = pdfium::MakeUnique<CPDF_AnnotList>(pPage);
-    bool bPrinting = pContext->m_pDevice->GetDeviceClass() != FXDC_DISPLAY;
-    pContext->m_pAnnots->DisplayAnnots(pPage, pContext->m_pContext.get(),
-                                       bPrinting, &matrix, false, nullptr);
-  }
-
-  pContext->m_pRenderer = pdfium::MakeUnique<CPDF_ProgressiveRenderer>(
-      pContext->m_pContext.get(), pContext->m_pDevice.get(),
-      pContext->m_pOptions.get());
-  pContext->m_pRenderer->Start(pause);
-  if (bNeedToRestore)
-    pContext->m_pDevice->RestoreState(false);
-}
-
-FPDF_DOCUMENT LoadDocumentImpl(
-    const RetainPtr<IFX_SeekableReadStream>& pFileAccess,
-    FPDF_BYTESTRING password) {
-  if (!pFileAccess) {
-    ProcessParseError(CPDF_Parser::FILE_ERROR);
-    return nullptr;
-  }
-
-  auto pParser = pdfium::MakeUnique<CPDF_Parser>();
-  pParser->SetPassword(password);
-
-  auto pDocument = pdfium::MakeUnique<CPDF_Document>(std::move(pParser));
-  CPDF_Parser::Error error =
-      pDocument->GetParser()->StartParse(pFileAccess, pDocument.get());
-  if (error != CPDF_Parser::SUCCESS) {
-    ProcessParseError(error);
-    return nullptr;
-  }
-  CheckUnSupportError(pDocument.get(), error);
-  return FPDFDocumentFromCPDFDocument(pDocument.release());
-}
-
-}  // namespace
-
-FPDF_EXPORT void FPDF_CALLCONV FPDF_InitLibrary() {
-  FPDF_InitLibraryWithConfig(nullptr);
-}
-
-FPDF_EXPORT void FPDF_CALLCONV
-FPDF_InitLibraryWithConfig(const FPDF_LIBRARY_CONFIG* cfg) {
-  if (g_bLibraryInitialized)
-    return;
-
-  FXMEM_InitializePartitionAlloc();
-
-  CFX_GEModule* pModule = CFX_GEModule::Get();
-  pModule->Init(cfg ? cfg->m_pUserFontPaths : nullptr);
-
-  CPDF_ModuleMgr* pModuleMgr = CPDF_ModuleMgr::Get();
-  pModuleMgr->Init();
-
-#ifdef PDF_ENABLE_XFA
-  BC_Library_Init();
-#endif  // PDF_ENABLE_XFA
-  if (cfg && cfg->version >= 2)
-    IJS_Runtime::Initialize(cfg->m_v8EmbedderSlot, cfg->m_pIsolate);
-
-  g_bLibraryInitialized = true;
-}
-
-FPDF_EXPORT void FPDF_CALLCONV FPDF_DestroyLibrary() {
-  if (!g_bLibraryInitialized)
-    return;
-
-#ifdef PDF_ENABLE_XFA
-  BC_Library_Destroy();
-#endif  // PDF_ENABLE_XFA
-
-  CPDF_ModuleMgr::Destroy();
-  CFX_GEModule::Destroy();
-
-  IJS_Runtime::Destroy();
-
-  g_bLibraryInitialized = false;
-}
-
-FPDF_EXPORT void FPDF_CALLCONV FPDF_SetSandBoxPolicy(FPDF_DWORD policy,
-                                                     FPDF_BOOL enable) {
-  return FSDK_SetSandBoxPolicy(policy, enable);
-}
-
-#if defined(_WIN32)
-#if defined(PDFIUM_PRINT_TEXT_WITH_GDI)
-FPDF_EXPORT void FPDF_CALLCONV
-FPDF_SetTypefaceAccessibleFunc(PDFiumEnsureTypefaceCharactersAccessible func) {
-  g_pdfium_typeface_accessible_func = func;
-}
-
-FPDF_EXPORT void FPDF_CALLCONV FPDF_SetPrintTextWithGDI(FPDF_BOOL use_gdi) {
-  g_pdfium_print_text_with_gdi = !!use_gdi;
-}
-#endif  // PDFIUM_PRINT_TEXT_WITH_GDI
-
-FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
-FPDF_SetPrintPostscriptLevel(int postscript_level) {
-  return postscript_level != 1 && FPDF_SetPrintMode(postscript_level);
-}
-
-FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDF_SetPrintMode(int mode) {
-  if (mode < FPDF_PRINTMODE_EMF || mode > FPDF_PRINTMODE_POSTSCRIPT3)
-    return FALSE;
-  g_pdfium_print_mode = mode;
-  return TRUE;
-}
-#endif  // defined(_WIN32)
-
-FPDF_EXPORT FPDF_DOCUMENT FPDF_CALLCONV
-FPDF_LoadDocument(FPDF_STRING file_path, FPDF_BYTESTRING password) {
-  // NOTE: the creation of the file needs to be by the embedder on the
-  // other side of this API.
-  return LoadDocumentImpl(IFX_SeekableReadStream::CreateFromFilename(file_path),
-                          password);
-}
-
-FPDF_EXPORT int FPDF_CALLCONV FPDF_GetFormType(FPDF_DOCUMENT document) {
-  const CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
-  if (!pDoc)
-    return FORMTYPE_NONE;
-
-  const CPDF_Dictionary* pRoot = pDoc->GetRoot();
-  if (!pRoot)
-    return FORMTYPE_NONE;
-
-  CPDF_Dictionary* pAcroForm = pRoot->GetDictFor("AcroForm");
-  if (!pAcroForm)
-    return FORMTYPE_NONE;
-
-  CPDF_Object* pXFA = pAcroForm->GetObjectFor("XFA");
-  if (!pXFA)
-    return FORMTYPE_ACRO_FORM;
-
-  bool bNeedsRendering = pRoot->GetBooleanFor("NeedsRendering", false);
-  return bNeedsRendering ? FORMTYPE_XFA_FULL : FORMTYPE_XFA_FOREGROUND;
-}
-
-#ifdef PDF_ENABLE_XFA
-FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDF_LoadXFA(FPDF_DOCUMENT document) {
-  return document && static_cast<CPDFXFA_Context*>(document)->LoadXFADoc();
-}
-#endif  // PDF_ENABLE_XFA
-
-FPDF_EXPORT FPDF_DOCUMENT FPDF_CALLCONV
-FPDF_LoadMemDocument(const void* data_buf, int size, FPDF_BYTESTRING password) {
-  return LoadDocumentImpl(pdfium::MakeRetain<CPDFSDK_MemoryAccess>(
-                              static_cast<const uint8_t*>(data_buf), size),
-                          password);
-}
-
-FPDF_EXPORT FPDF_DOCUMENT FPDF_CALLCONV
-FPDF_LoadCustomDocument(FPDF_FILEACCESS* pFileAccess,
-                        FPDF_BYTESTRING password) {
-  return LoadDocumentImpl(pdfium::MakeRetain<CPDFSDK_CustomAccess>(pFileAccess),
-                          password);
-}
-
-FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDF_GetFileVersion(FPDF_DOCUMENT doc,
-                                                        int* fileVersion) {
-  if (!fileVersion)
-    return false;
-
-  *fileVersion = 0;
-  CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(doc);
-  if (!pDoc)
-    return false;
-
-  const CPDF_Parser* pParser = pDoc->GetParser();
-  if (!pParser)
-    return false;
-
-  *fileVersion = pParser->GetFileVersion();
-  return true;
-}
-
-// jabdelmalek: changed return type from uint32_t to build on Linux (and match
-// header).
-FPDF_EXPORT unsigned long FPDF_CALLCONV
-FPDF_GetDocPermissions(FPDF_DOCUMENT document) {
-  CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
-  // https://bugs.chromium.org/p/pdfium/issues/detail?id=499
-  if (!pDoc) {
-#ifndef PDF_ENABLE_XFA
-    return 0;
-#else   // PDF_ENABLE_XFA
-    return 0xFFFFFFFF;
-#endif  // PDF_ENABLE_XFA
-  }
-
-  return pDoc->GetUserPermissions();
-}
-
-FPDF_EXPORT int FPDF_CALLCONV
-FPDF_GetSecurityHandlerRevision(FPDF_DOCUMENT document) {
-  CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
-  if (!pDoc || !pDoc->GetParser())
-    return -1;
-
-  CPDF_Dictionary* pDict = pDoc->GetParser()->GetEncryptDict();
-  return pDict ? pDict->GetIntegerFor("R") : -1;
-}
-
-FPDF_EXPORT int FPDF_CALLCONV FPDF_GetPageCount(FPDF_DOCUMENT document) {
-  UnderlyingDocumentType* pDoc = UnderlyingFromFPDFDocument(document);
-  return pDoc ? pDoc->GetPageCount() : 0;
-}
-
-FPDF_EXPORT FPDF_PAGE FPDF_CALLCONV FPDF_LoadPage(FPDF_DOCUMENT document,
-                                                  int page_index) {
-  UnderlyingDocumentType* pDoc = UnderlyingFromFPDFDocument(document);
-  if (!pDoc)
-    return nullptr;
-
-  if (page_index < 0 || page_index >= pDoc->GetPageCount())
-    return nullptr;
-
-#ifdef PDF_ENABLE_XFA
-  return pDoc->GetXFAPage(page_index).Leak();
-#else   // PDF_ENABLE_XFA
-  CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
-  if (!pDict)
-    return nullptr;
-
-  CPDF_Page* pPage = new CPDF_Page(pDoc, pDict, true);
-  pPage->ParseContent();
-  return pPage;
-#endif  // PDF_ENABLE_XFA
-}
-
-FPDF_EXPORT double FPDF_CALLCONV FPDF_GetPageWidth(FPDF_PAGE page) {
-  UnderlyingPageType* pPage = UnderlyingFromFPDFPage(page);
-  return pPage ? pPage->GetPageWidth() : 0.0;
-}
-
-FPDF_EXPORT double FPDF_CALLCONV FPDF_GetPageHeight(FPDF_PAGE page) {
-  UnderlyingPageType* pPage = UnderlyingFromFPDFPage(page);
-  return pPage ? pPage->GetPageHeight() : 0.0;
-}
-
-FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDF_GetPageBoundingBox(FPDF_PAGE page,
-                                                            FS_RECTF* rect) {
-  if (!rect)
-    return false;
-
-  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
-  if (!pPage)
-    return false;
-
-  FSRECTFFromCFXFloatRect(pPage->GetPageBBox(), rect);
-  return true;
-}
-
-#if defined(_WIN32)
-namespace {
-
-const double kEpsilonSize = 0.01f;
-
-void GetScaling(CPDF_Page* pPage,
-                int size_x,
-                int size_y,
-                int rotate,
-                double* scale_x,
-                double* scale_y) {
-  ASSERT(pPage);
-  ASSERT(scale_x);
-  ASSERT(scale_y);
-  double page_width = pPage->GetPageWidth();
-  double page_height = pPage->GetPageHeight();
-  if (page_width < kEpsilonSize || page_height < kEpsilonSize)
-    return;
-
-  if (rotate % 2 == 0) {
-    *scale_x = size_x / page_width;
-    *scale_y = size_y / page_height;
-  } else {
-    *scale_x = size_y / page_width;
-    *scale_y = size_x / page_height;
-  }
-}
-
-FX_RECT GetMaskDimensionsAndOffsets(CPDF_Page* pPage,
-                                    int start_x,
-                                    int start_y,
-                                    int size_x,
-                                    int size_y,
-                                    int rotate,
-                                    const CFX_FloatRect& mask_box) {
-  double scale_x = 0.0f;
-  double scale_y = 0.0f;
-  GetScaling(pPage, size_x, size_y, rotate, &scale_x, &scale_y);
-  if (scale_x < kEpsilonSize || scale_y < kEpsilonSize)
-    return FX_RECT();
-
-  // Compute sizes in page points. Round down to catch the entire bitmap.
-  int start_x_bm = static_cast<int>(mask_box.left * scale_x);
-  int start_y_bm = static_cast<int>(mask_box.bottom * scale_y);
-  int size_x_bm = static_cast<int>(mask_box.right * scale_x + 1.0f) -
-                  static_cast<int>(mask_box.left * scale_x);
-  int size_y_bm = static_cast<int>(mask_box.top * scale_y + 1.0f) -
-                  static_cast<int>(mask_box.bottom * scale_y);
-
-  // Get page rotation
-  int page_rotation = pPage->GetPageRotation();
-
-  // Compute offsets
-  int offset_x = 0;
-  int offset_y = 0;
-  if (size_x > size_y)
-    std::swap(size_x_bm, size_y_bm);
-
-  switch ((rotate + page_rotation) % 4) {
-    case 0:
-      offset_x = start_x_bm + start_x;
-      offset_y = start_y + size_y - size_y_bm - start_y_bm;
-      break;
-    case 1:
-      offset_x = start_y_bm + start_x;
-      offset_y = start_x_bm + start_y;
-      break;
-    case 2:
-      offset_x = start_x + size_x - size_x_bm - start_x_bm;
-      offset_y = start_y_bm + start_y;
-      break;
-    case 3:
-      offset_x = start_x + size_x - size_x_bm - start_y_bm;
-      offset_y = start_y + size_y - size_y_bm - start_x_bm;
-      break;
-  }
-  return FX_RECT(offset_x, offset_y, offset_x + size_x_bm,
-                 offset_y + size_y_bm);
-}
-
-// Get a bitmap of just the mask section defined by |mask_box| from a full page
-// bitmap |pBitmap|.
-RetainPtr<CFX_DIBitmap> GetMaskBitmap(CPDF_Page* pPage,
-                                      int start_x,
-                                      int start_y,
-                                      int size_x,
-                                      int size_y,
-                                      int rotate,
-                                      const RetainPtr<CFX_DIBitmap>& pSrc,
-                                      const CFX_FloatRect& mask_box,
-                                      FX_RECT* bitmap_area) {
-  ASSERT(bitmap_area);
-  *bitmap_area = GetMaskDimensionsAndOffsets(pPage, start_x, start_y, size_x,
-                                             size_y, rotate, mask_box);
-  if (bitmap_area->IsEmpty())
-    return nullptr;
-
-  // Create a new bitmap to transfer part of the page bitmap to.
-  RetainPtr<CFX_DIBitmap> pDst = pdfium::MakeRetain<CFX_DIBitmap>();
-  pDst->Create(bitmap_area->Width(), bitmap_area->Height(), FXDIB_Argb);
-  pDst->Clear(0x00ffffff);
-  pDst->TransferBitmap(0, 0, bitmap_area->Width(), bitmap_area->Height(), pSrc,
-                       bitmap_area->left, bitmap_area->top);
-  return pDst;
-}
-
-void RenderBitmap(CFX_RenderDevice* device,
-                  const RetainPtr<CFX_DIBitmap>& pSrc,
-                  const FX_RECT& mask_area) {
-  int size_x_bm = mask_area.Width();
-  int size_y_bm = mask_area.Height();
-  if (size_x_bm == 0 || size_y_bm == 0)
-    return;
-
-  // Create a new bitmap from the old one
-  RetainPtr<CFX_DIBitmap> pDst = pdfium::MakeRetain<CFX_DIBitmap>();
-  pDst->Create(size_x_bm, size_y_bm, FXDIB_Rgb32);
-  pDst->Clear(0xffffffff);
-  pDst->CompositeBitmap(0, 0, size_x_bm, size_y_bm, pSrc, 0, 0,
-                        FXDIB_BLEND_NORMAL, nullptr, false);
-
-  if (device->GetDeviceCaps(FXDC_DEVICE_CLASS) == FXDC_PRINTER) {
-    device->StretchDIBits(pDst, mask_area.left, mask_area.top, size_x_bm,
-                          size_y_bm);
-  } else {
-    device->SetDIBits(pDst, mask_area.left, mask_area.top);
-  }
-}
-
-}  // namespace
-
-FPDF_EXPORT void FPDF_CALLCONV FPDF_RenderPage(HDC dc,
-                                               FPDF_PAGE page,
-                                               int start_x,
-                                               int start_y,
-                                               int size_x,
-                                               int size_y,
-                                               int rotate,
-                                               int flags) {
-  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
-  if (!pPage)
-    return;
-  pPage->SetRenderContext(pdfium::MakeUnique<CPDF_PageRenderContext>());
-  CPDF_PageRenderContext* pContext = pPage->GetRenderContext();
-
-  RetainPtr<CFX_DIBitmap> pBitmap;
-  // Don't render the full page to bitmap for a mask unless there are a lot
-  // of masks. Full page bitmaps result in large spool sizes, so they should
-  // only be used when necessary. For large numbers of masks, rendering each
-  // individually is inefficient and unlikely to significantly improve spool
-  // size. TODO (rbpotter): Find out why this still breaks printing for some
-  // PDFs (see crbug.com/777837).
-  const bool bEnableImageMasks = false;
-  const bool bNewBitmap = pPage->BackgroundAlphaNeeded() ||
-                          (pPage->HasImageMask() && !bEnableImageMasks) ||
-                          pPage->GetMaskBoundingBoxes().size() > 100;
-  const bool bHasMask = pPage->HasImageMask() && !bNewBitmap;
-  if (bNewBitmap || bHasMask) {
-    pBitmap = pdfium::MakeRetain<CFX_DIBitmap>();
-    pBitmap->Create(size_x, size_y, FXDIB_Argb);
-    pBitmap->Clear(0x00ffffff);
-    CFX_DefaultRenderDevice* pDevice = new CFX_DefaultRenderDevice;
-    pContext->m_pDevice = pdfium::WrapUnique(pDevice);
-    pDevice->Attach(pBitmap, false, nullptr, false);
-    if (bHasMask) {
-      pContext->m_pOptions = pdfium::MakeUnique<CPDF_RenderOptions>();
-      uint32_t option_flags = pContext->m_pOptions->GetFlags();
-      option_flags |= RENDER_BREAKFORMASKS;
-      pContext->m_pOptions->SetFlags(option_flags);
-    }
-  } else {
-    pContext->m_pDevice = pdfium::MakeUnique<CFX_WindowsRenderDevice>(dc);
-  }
-
-  FPDF_RenderPage_Retail(pContext, page, start_x, start_y, size_x, size_y,
-                         rotate, flags, true, nullptr);
-
-  if (bHasMask) {
-    // Finish rendering the page to bitmap and copy the correct segments
-    // of the page to individual image mask bitmaps.
-    const std::vector<CFX_FloatRect>& mask_boxes =
-        pPage->GetMaskBoundingBoxes();
-    std::vector<FX_RECT> bitmap_areas(mask_boxes.size());
-    std::vector<RetainPtr<CFX_DIBitmap>> bitmaps(mask_boxes.size());
-    for (size_t i = 0; i < mask_boxes.size(); i++) {
-      bitmaps[i] =
-          GetMaskBitmap(pPage, start_x, start_y, size_x, size_y, rotate,
-                        pBitmap, mask_boxes[i], &bitmap_areas[i]);
-      pContext->m_pRenderer->Continue(nullptr);
-    }
-
-    // Reset rendering context
-    pPage->SetRenderContext(nullptr);
-
-    // Begin rendering to the printer. Add flag to indicate the renderer should
-    // pause after each image mask.
-    pPage->SetRenderContext(pdfium::MakeUnique<CPDF_PageRenderContext>());
-    pContext = pPage->GetRenderContext();
-    pContext->m_pDevice = pdfium::MakeUnique<CFX_WindowsRenderDevice>(dc);
-    pContext->m_pOptions = pdfium::MakeUnique<CPDF_RenderOptions>();
-
-    uint32_t option_flags = pContext->m_pOptions->GetFlags();
-    option_flags |= RENDER_BREAKFORMASKS;
-    pContext->m_pOptions->SetFlags(option_flags);
-
-    FPDF_RenderPage_Retail(pContext, page, start_x, start_y, size_x, size_y,
-                           rotate, flags, true, nullptr);
-
-    // Render masks
-    for (size_t i = 0; i < mask_boxes.size(); i++) {
-      // Render the bitmap for the mask and free the bitmap.
-      if (bitmaps[i]) {  // will be null if mask has zero area
-        RenderBitmap(pContext->m_pDevice.get(), bitmaps[i], bitmap_areas[i]);
-      }
-      // Render the next portion of page.
-      pContext->m_pRenderer->Continue(nullptr);
-    }
-  } else if (bNewBitmap) {
-    CFX_WindowsRenderDevice WinDC(dc);
-    if (WinDC.GetDeviceCaps(FXDC_DEVICE_CLASS) == FXDC_PRINTER) {
-      auto pDst = pdfium::MakeRetain<CFX_DIBitmap>();
-      int pitch = pBitmap->GetPitch();
-      pDst->Create(size_x, size_y, FXDIB_Rgb32);
-      memset(pDst->GetBuffer(), -1, pitch * size_y);
-      pDst->CompositeBitmap(0, 0, size_x, size_y, pBitmap, 0, 0,
-                            FXDIB_BLEND_NORMAL, nullptr, false);
-      WinDC.StretchDIBits(pDst, 0, 0, size_x, size_y);
-    } else {
-      WinDC.SetDIBits(pBitmap, 0, 0);
-    }
-  }
-
-  pPage->SetRenderContext(nullptr);
-}
-#endif  // defined(_WIN32)
-
-FPDF_EXPORT void FPDF_CALLCONV FPDF_RenderPageBitmap(FPDF_BITMAP bitmap,
-                                                     FPDF_PAGE page,
-                                                     int start_x,
-                                                     int start_y,
-                                                     int size_x,
-                                                     int size_y,
-                                                     int rotate,
-                                                     int flags) {
-  if (!bitmap)
-    return;
-
-  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
-  if (!pPage)
-    return;
-
-  CPDF_PageRenderContext* pContext = new CPDF_PageRenderContext;
-  pPage->SetRenderContext(pdfium::WrapUnique(pContext));
-
-  CFX_DefaultRenderDevice* pDevice = new CFX_DefaultRenderDevice;
-  pContext->m_pDevice.reset(pDevice);
-
-  RetainPtr<CFX_DIBitmap> pBitmap(CFXBitmapFromFPDFBitmap(bitmap));
-  pDevice->Attach(pBitmap, !!(flags & FPDF_REVERSE_BYTE_ORDER), nullptr, false);
-  FPDF_RenderPage_Retail(pContext, page, start_x, start_y, size_x, size_y,
-                         rotate, flags, true, nullptr);
-
-#ifdef _SKIA_SUPPORT_PATHS_
-  pDevice->Flush(true);
-  pBitmap->UnPreMultiply();
-#endif
-  pPage->SetRenderContext(nullptr);
-}
-
-FPDF_EXPORT void FPDF_CALLCONV
-FPDF_RenderPageBitmapWithMatrix(FPDF_BITMAP bitmap,
-                                FPDF_PAGE page,
-                                const FS_MATRIX* matrix,
-                                const FS_RECTF* clipping,
-                                int flags) {
-  if (!bitmap)
-    return;
-
-  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
-  if (!pPage)
-    return;
-
-  CPDF_PageRenderContext* pContext = new CPDF_PageRenderContext;
-  pPage->SetRenderContext(pdfium::WrapUnique(pContext));
-
-  CFX_DefaultRenderDevice* pDevice = new CFX_DefaultRenderDevice;
-  pContext->m_pDevice.reset(pDevice);
-
-  RetainPtr<CFX_DIBitmap> pBitmap(CFXBitmapFromFPDFBitmap(bitmap));
-  pDevice->Attach(pBitmap, !!(flags & FPDF_REVERSE_BYTE_ORDER), nullptr, false);
-
-  CFX_FloatRect clipping_rect;
-  if (clipping)
-    clipping_rect = CFXFloatRectFromFSRECTF(*clipping);
-  FX_RECT clip_rect = clipping_rect.ToFxRect();
-
-  CFX_Matrix transform_matrix = pPage->GetDisplayMatrix(
-      0, 0, pPage->GetPageWidth(), pPage->GetPageHeight(), 0);
-
-  if (matrix) {
-    transform_matrix.Concat(CFX_Matrix(matrix->a, matrix->b, matrix->c,
-                                       matrix->d, matrix->e, matrix->f));
-  }
-  RenderPageImpl(pContext, pPage, transform_matrix, clip_rect, flags, true,
-                 nullptr);
-
-  pPage->SetRenderContext(nullptr);
-}
-
-#ifdef _SKIA_SUPPORT_
-FPDF_EXPORT FPDF_RECORDER FPDF_CALLCONV FPDF_RenderPageSkp(FPDF_PAGE page,
-                                                           int size_x,
-                                                           int size_y) {
-  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
-  if (!pPage)
-    return nullptr;
-
-  CPDF_PageRenderContext* pContext = new CPDF_PageRenderContext;
-  pPage->SetRenderContext(pdfium::WrapUnique(pContext));
-  CFX_DefaultRenderDevice* skDevice = new CFX_DefaultRenderDevice;
-  FPDF_RECORDER recorder = skDevice->CreateRecorder(size_x, size_y);
-  pContext->m_pDevice.reset(skDevice);
-  FPDF_RenderPage_Retail(pContext, page, 0, 0, size_x, size_y, 0, 0, true,
-                         nullptr);
-  pPage->SetRenderContext(nullptr);
-  return recorder;
-}
-#endif
-
-FPDF_EXPORT void FPDF_CALLCONV FPDF_ClosePage(FPDF_PAGE page) {
-  UnderlyingPageType* pPage = UnderlyingFromFPDFPage(page);
-  if (!page)
-    return;
-#ifdef PDF_ENABLE_XFA
-  // Take it back across the API and throw it away.
-  RetainPtr<CPDFXFA_Page>().Unleak(pPage);
-#else   // PDF_ENABLE_XFA
-  CPDFSDK_PageView* pPageView =
-      static_cast<CPDFSDK_PageView*>(pPage->GetView());
-  if (pPageView) {
-    // We're already destroying the pageview, so bail early.
-    if (pPageView->IsBeingDestroyed())
-      return;
-
-    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()->RemovePageView(pPage);
-    // If the page was owned then the pageview will have deleted the page.
-    if (owned)
-      return;
-  }
-  delete pPage;
-#endif  // PDF_ENABLE_XFA
-}
-
-FPDF_EXPORT void FPDF_CALLCONV FPDF_CloseDocument(FPDF_DOCUMENT document) {
-  delete UnderlyingFromFPDFDocument(document);
-}
-
-FPDF_EXPORT unsigned long FPDF_CALLCONV FPDF_GetLastError() {
-  return GetLastError();
-}
-
-FPDF_EXPORT void FPDF_CALLCONV FPDF_DeviceToPage(FPDF_PAGE page,
-                                                 int start_x,
-                                                 int start_y,
-                                                 int size_x,
-                                                 int size_y,
-                                                 int rotate,
-                                                 int device_x,
-                                                 int device_y,
-                                                 double* page_x,
-                                                 double* page_y) {
-  if (!page || !page_x || !page_y)
-    return;
-  UnderlyingPageType* pPage = UnderlyingFromFPDFPage(page);
-#ifdef PDF_ENABLE_XFA
-  pPage->DeviceToPage(start_x, start_y, size_x, size_y, rotate, device_x,
-                      device_y, page_x, page_y);
-#else   // PDF_ENABLE_XFA
-  CFX_Matrix page2device =
-      pPage->GetDisplayMatrix(start_x, start_y, size_x, size_y, rotate);
-
-  CFX_PointF pos = page2device.GetInverse().Transform(
-      CFX_PointF(static_cast<float>(device_x), static_cast<float>(device_y)));
-
-  *page_x = pos.x;
-  *page_y = pos.y;
-#endif  // PDF_ENABLE_XFA
-}
-
-FPDF_EXPORT void FPDF_CALLCONV FPDF_PageToDevice(FPDF_PAGE page,
-                                                 int start_x,
-                                                 int start_y,
-                                                 int size_x,
-                                                 int size_y,
-                                                 int rotate,
-                                                 double page_x,
-                                                 double page_y,
-                                                 int* device_x,
-                                                 int* device_y) {
-  if (!device_x || !device_y)
-    return;
-  UnderlyingPageType* pPage = UnderlyingFromFPDFPage(page);
-  if (!pPage)
-    return;
-#ifdef PDF_ENABLE_XFA
-  pPage->PageToDevice(start_x, start_y, size_x, size_y, rotate, page_x, page_y,
-                      device_x, device_y);
-#else   // PDF_ENABLE_XFA
-  CFX_Matrix page2device =
-      pPage->GetDisplayMatrix(start_x, start_y, size_x, size_y, rotate);
-  CFX_PointF pos = page2device.Transform(
-      CFX_PointF(static_cast<float>(page_x), static_cast<float>(page_y)));
-
-  *device_x = FXSYS_round(pos.x);
-  *device_y = FXSYS_round(pos.y);
-#endif  // PDF_ENABLE_XFA
-}
-
-FPDF_EXPORT FPDF_BITMAP FPDF_CALLCONV FPDFBitmap_Create(int width,
-                                                        int height,
-                                                        int alpha) {
-  auto pBitmap = pdfium::MakeRetain<CFX_DIBitmap>();
-  if (!pBitmap->Create(width, height, alpha ? FXDIB_Argb : FXDIB_Rgb32))
-    return nullptr;
-
-  return pBitmap.Leak();
-}
-
-FPDF_EXPORT FPDF_BITMAP FPDF_CALLCONV FPDFBitmap_CreateEx(int width,
-                                                          int height,
-                                                          int format,
-                                                          void* first_scan,
-                                                          int stride) {
-  FXDIB_Format fx_format;
-  switch (format) {
-    case FPDFBitmap_Gray:
-      fx_format = FXDIB_8bppRgb;
-      break;
-    case FPDFBitmap_BGR:
-      fx_format = FXDIB_Rgb;
-      break;
-    case FPDFBitmap_BGRx:
-      fx_format = FXDIB_Rgb32;
-      break;
-    case FPDFBitmap_BGRA:
-      fx_format = FXDIB_Argb;
-      break;
-    default:
-      return nullptr;
-  }
-  auto pBitmap = pdfium::MakeRetain<CFX_DIBitmap>();
-  pBitmap->Create(width, height, fx_format, static_cast<uint8_t*>(first_scan),
-                  stride);
-  return pBitmap.Leak();
-}
-
-FPDF_EXPORT int FPDF_CALLCONV FPDFBitmap_GetFormat(FPDF_BITMAP bitmap) {
-  if (!bitmap)
-    return FPDFBitmap_Unknown;
-
-  FXDIB_Format format = CFXBitmapFromFPDFBitmap(bitmap)->GetFormat();
-  switch (format) {
-    case FXDIB_8bppRgb:
-    case FXDIB_8bppMask:
-      return FPDFBitmap_Gray;
-    case FXDIB_Rgb:
-      return FPDFBitmap_BGR;
-    case FXDIB_Rgb32:
-      return FPDFBitmap_BGRx;
-    case FXDIB_Argb:
-      return FPDFBitmap_BGRA;
-    default:
-      return FPDFBitmap_Unknown;
-  }
-}
-
-FPDF_EXPORT void FPDF_CALLCONV FPDFBitmap_FillRect(FPDF_BITMAP bitmap,
-                                                   int left,
-                                                   int top,
-                                                   int width,
-                                                   int height,
-                                                   FPDF_DWORD color) {
-  if (!bitmap)
-    return;
-
-  CFX_DefaultRenderDevice device;
-  RetainPtr<CFX_DIBitmap> pBitmap(CFXBitmapFromFPDFBitmap(bitmap));
-  device.Attach(pBitmap, false, nullptr, false);
-  if (!pBitmap->HasAlpha())
-    color |= 0xFF000000;
-  FX_RECT rect(left, top, left + width, top + height);
-  device.FillRect(&rect, color);
-}
-
-FPDF_EXPORT void* FPDF_CALLCONV FPDFBitmap_GetBuffer(FPDF_BITMAP bitmap) {
-  return bitmap ? CFXBitmapFromFPDFBitmap(bitmap)->GetBuffer() : nullptr;
-}
-
-FPDF_EXPORT int FPDF_CALLCONV FPDFBitmap_GetWidth(FPDF_BITMAP bitmap) {
-  return bitmap ? CFXBitmapFromFPDFBitmap(bitmap)->GetWidth() : 0;
-}
-
-FPDF_EXPORT int FPDF_CALLCONV FPDFBitmap_GetHeight(FPDF_BITMAP bitmap) {
-  return bitmap ? CFXBitmapFromFPDFBitmap(bitmap)->GetHeight() : 0;
-}
-
-FPDF_EXPORT int FPDF_CALLCONV FPDFBitmap_GetStride(FPDF_BITMAP bitmap) {
-  return bitmap ? CFXBitmapFromFPDFBitmap(bitmap)->GetPitch() : 0;
-}
-
-FPDF_EXPORT void FPDF_CALLCONV FPDFBitmap_Destroy(FPDF_BITMAP bitmap) {
-  RetainPtr<CFX_DIBitmap> destroyer;
-  destroyer.Unleak(CFXBitmapFromFPDFBitmap(bitmap));
-}
-
-void FPDF_RenderPage_Retail(CPDF_PageRenderContext* pContext,
-                            FPDF_PAGE page,
-                            int start_x,
-                            int start_y,
-                            int size_x,
-                            int size_y,
-                            int rotate,
-                            int flags,
-                            bool bNeedToRestore,
-                            IPDFSDK_PauseAdapter* pause) {
-  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
-  if (!pPage)
-    return;
-
-  RenderPageImpl(pContext, pPage, pPage->GetDisplayMatrix(
-                                      start_x, start_y, size_x, size_y, rotate),
-                 FX_RECT(start_x, start_y, start_x + size_x, start_y + size_y),
-                 flags, bNeedToRestore, pause);
-}
-
-FPDF_EXPORT int FPDF_CALLCONV FPDF_GetPageSizeByIndex(FPDF_DOCUMENT document,
-                                                      int page_index,
-                                                      double* width,
-                                                      double* height) {
-  UnderlyingDocumentType* pDoc = UnderlyingFromFPDFDocument(document);
-  if (!pDoc)
-    return false;
-
-#ifdef PDF_ENABLE_XFA
-  int count = pDoc->GetPageCount();
-  if (page_index < 0 || page_index >= count)
-    return false;
-  RetainPtr<CPDFXFA_Page> pPage = pDoc->GetXFAPage(page_index);
-  if (!pPage)
-    return false;
-  *width = pPage->GetPageWidth();
-  *height = pPage->GetPageHeight();
-#else   // PDF_ENABLE_XFA
-  CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
-  if (!pDict)
-    return false;
-
-  CPDF_Page page(pDoc, pDict, true);
-  *width = page.GetPageWidth();
-  *height = page.GetPageHeight();
-#endif  // PDF_ENABLE_XFA
-
-  return true;
-}
-
-FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
-FPDF_VIEWERREF_GetPrintScaling(FPDF_DOCUMENT document) {
-  CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
-  if (!pDoc)
-    return true;
-  CPDF_ViewerPreferences viewRef(pDoc);
-  return viewRef.PrintScaling();
-}
-
-FPDF_EXPORT int FPDF_CALLCONV
-FPDF_VIEWERREF_GetNumCopies(FPDF_DOCUMENT document) {
-  CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
-  if (!pDoc)
-    return 1;
-  CPDF_ViewerPreferences viewRef(pDoc);
-  return viewRef.NumCopies();
-}
-
-FPDF_EXPORT FPDF_PAGERANGE FPDF_CALLCONV
-FPDF_VIEWERREF_GetPrintPageRange(FPDF_DOCUMENT document) {
-  CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
-  if (!pDoc)
-    return nullptr;
-  CPDF_ViewerPreferences viewRef(pDoc);
-  return viewRef.PrintPageRange();
-}
-
-FPDF_EXPORT FPDF_DUPLEXTYPE FPDF_CALLCONV
-FPDF_VIEWERREF_GetDuplex(FPDF_DOCUMENT document) {
-  CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
-  if (!pDoc)
-    return DuplexUndefined;
-  CPDF_ViewerPreferences viewRef(pDoc);
-  ByteString duplex = viewRef.Duplex();
-  if ("Simplex" == duplex)
-    return Simplex;
-  if ("DuplexFlipShortEdge" == duplex)
-    return DuplexFlipShortEdge;
-  if ("DuplexFlipLongEdge" == duplex)
-    return DuplexFlipLongEdge;
-  return DuplexUndefined;
-}
-
-FPDF_EXPORT unsigned long FPDF_CALLCONV
-FPDF_VIEWERREF_GetName(FPDF_DOCUMENT document,
-                       FPDF_BYTESTRING key,
-                       char* buffer,
-                       unsigned long length) {
-  CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
-  if (!pDoc)
-    return 0;
-
-  CPDF_ViewerPreferences viewRef(pDoc);
-  ByteString bsVal;
-  if (!viewRef.GenericName(key, &bsVal))
-    return 0;
-
-  unsigned long dwStringLen = bsVal.GetLength() + 1;
-  if (buffer && length >= dwStringLen)
-    memcpy(buffer, bsVal.c_str(), dwStringLen);
-  return dwStringLen;
-}
-
-FPDF_EXPORT FPDF_DWORD FPDF_CALLCONV
-FPDF_CountNamedDests(FPDF_DOCUMENT document) {
-  CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
-  if (!pDoc)
-    return 0;
-
-  const CPDF_Dictionary* pRoot = pDoc->GetRoot();
-  if (!pRoot)
-    return 0;
-
-  CPDF_NameTree nameTree(pDoc, "Dests");
-  pdfium::base::CheckedNumeric<FPDF_DWORD> count = nameTree.GetCount();
-  CPDF_Dictionary* pDest = pRoot->GetDictFor("Dests");
-  if (pDest)
-    count += pDest->GetCount();
-
-  if (!count.IsValid())
-    return 0;
-
-  return count.ValueOrDie();
-}
-
-FPDF_EXPORT FPDF_DEST FPDF_CALLCONV
-FPDF_GetNamedDestByName(FPDF_DOCUMENT document, FPDF_BYTESTRING name) {
-  if (!name || name[0] == 0)
-    return nullptr;
-
-  CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
-  if (!pDoc)
-    return nullptr;
-
-  CPDF_NameTree name_tree(pDoc, "Dests");
-  return name_tree.LookupNamedDest(pDoc, PDF_DecodeText(ByteString(name)));
-}
-
-#ifdef PDF_ENABLE_XFA
-FPDF_EXPORT FPDF_RESULT FPDF_CALLCONV FPDF_BStr_Init(FPDF_BSTR* str) {
-  if (!str)
-    return -1;
-
-  memset(str, 0, sizeof(FPDF_BSTR));
-  return 0;
-}
-
-FPDF_EXPORT FPDF_RESULT FPDF_CALLCONV FPDF_BStr_Set(FPDF_BSTR* str,
-                                                    FPDF_LPCSTR bstr,
-                                                    int length) {
-  if (!str || !bstr || !length)
-    return -1;
-
-  if (length == -1)
-    length = strlen(bstr);
-
-  if (length == 0) {
-    FPDF_BStr_Clear(str);
-    return 0;
-  }
-
-  if (str->str && str->len < length)
-    str->str = FX_Realloc(char, str->str, length + 1);
-  else if (!str->str)
-    str->str = FX_Alloc(char, length + 1);
-
-  str->str[length] = 0;
-  memcpy(str->str, bstr, length);
-  str->len = length;
-
-  return 0;
-}
-
-FPDF_EXPORT FPDF_RESULT FPDF_CALLCONV FPDF_BStr_Clear(FPDF_BSTR* str) {
-  if (!str)
-    return -1;
-
-  if (str->str) {
-    FX_Free(str->str);
-    str->str = nullptr;
-  }
-  str->len = 0;
-  return 0;
-}
-#endif  // PDF_ENABLE_XFA
-
-FPDF_EXPORT FPDF_DEST FPDF_CALLCONV FPDF_GetNamedDest(FPDF_DOCUMENT document,
-                                                      int index,
-                                                      void* buffer,
-                                                      long* buflen) {
-  if (!buffer)
-    *buflen = 0;
-
-  if (index < 0)
-    return nullptr;
-
-  CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
-  if (!pDoc)
-    return nullptr;
-
-  const CPDF_Dictionary* pRoot = pDoc->GetRoot();
-  if (!pRoot)
-    return nullptr;
-
-  CPDF_Object* pDestObj = nullptr;
-  WideString wsName;
-  CPDF_NameTree nameTree(pDoc, "Dests");
-  int count = nameTree.GetCount();
-  if (index >= count) {
-    CPDF_Dictionary* pDest = pRoot->GetDictFor("Dests");
-    if (!pDest)
-      return nullptr;
-
-    pdfium::base::CheckedNumeric<int> checked_count = count;
-    checked_count += pDest->GetCount();
-    if (!checked_count.IsValid() || index >= checked_count.ValueOrDie())
-      return nullptr;
-
-    index -= count;
-    int i = 0;
-    ByteString bsName;
-    for (const auto& it : *pDest) {
-      bsName = it.first;
-      pDestObj = it.second.get();
-      if (!pDestObj)
-        continue;
-      if (i == index)
-        break;
-      i++;
-    }
-    wsName = PDF_DecodeText(bsName);
-  } else {
-    pDestObj = nameTree.LookupValueAndName(index, &wsName);
-  }
-  if (!pDestObj)
-    return nullptr;
-  if (CPDF_Dictionary* pDict = pDestObj->AsDictionary()) {
-    pDestObj = pDict->GetArrayFor("D");
-    if (!pDestObj)
-      return nullptr;
-  }
-  if (!pDestObj->IsArray())
-    return nullptr;
-
-  ByteString utf16Name = wsName.UTF16LE_Encode();
-  int len = utf16Name.GetLength();
-  if (!buffer) {
-    *buflen = len;
-  } else if (len <= *buflen) {
-    memcpy(buffer, utf16Name.c_str(), len);
-    *buflen = len;
-  } else {
-    *buflen = -1;
-  }
-  return (FPDF_DEST)pDestObj;
-}