Merge to XFA: Change _PDF_RenderItem to CPDF_RenderContext::Layer.

core/src/fpdfapi/fpdf_render/fpdf_render_pattern.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 "render_int.h"
 
 #include "core/include/fpdfapi/fpdf_pageobj.h"
 #include "core/include/fpdfapi/fpdf_render.h"
@@ skipping 971 matching lines @@
   mtAdjust.MatchRect(bitmap_rect, cell_bbox);
   CFX_Matrix mtPattern2Bitmap = *pObject2Device;
   mtPattern2Bitmap.Concat(mtAdjust);
   CPDF_RenderOptions options;
   if (!pPattern->m_bColored) {
     options.m_ColorMode = RENDER_COLOR_ALPHA;
   }
   flags |= RENDER_FORCE_HALFTONE;
   options.m_Flags = flags;
   CPDF_RenderContext context(pDoc, pCache);
-  context.DrawObjectList(&bitmap_device, pPattern->m_pForm, &mtPattern2Bitmap,
-                         &options);
+  context.AppendLayer(pPattern->m_pForm, &mtPattern2Bitmap);
+  context.Render(&bitmap_device, &options, nullptr);
   return pBitmap;
 }
 void CPDF_RenderStatus::DrawTilingPattern(CPDF_TilingPattern* pPattern,
                                           CPDF_PageObject* pPageObj,
                                           const CFX_Matrix* pObj2Device,
                                           FX_BOOL bStroke) {
   if (!pPattern->Load()) {
     return;
   }
   m_pDevice->SaveState();
@@ skipping 100 matching lines @@
     max_row = (clip_box.bottom - orig_y) / height;
     if (clip_box.bottom <= orig_y) {
       max_row--;
     }
   }
   FX_FLOAT left_offset = cell_bbox.left - mtPattern2Device.e;
   FX_FLOAT top_offset = cell_bbox.bottom - mtPattern2Device.f;
   CFX_DIBitmap* pPatternBitmap = NULL;
   if (width * height < 16) {
     CFX_DIBitmap* pEnlargedBitmap =
-        DrawPatternBitmap(m_pContext->m_pDocument, m_pContext->m_pPageCache,
+        DrawPatternBitmap(m_pContext->GetDocument(), m_pContext->GetPageCache(),
                           pPattern, pObj2Device, 8, 8, m_Options.m_Flags);
     pPatternBitmap = pEnlargedBitmap->StretchTo(width, height);
     delete pEnlargedBitmap;
   } else {
     pPatternBitmap = DrawPatternBitmap(
-        m_pContext->m_pDocument, m_pContext->m_pPageCache, pPattern,
+        m_pContext->GetDocument(), m_pContext->GetPageCache(), pPattern,
         pObj2Device, width, height, m_Options.m_Flags);
   }
   if (!pPatternBitmap) {
     m_pDevice->RestoreState();
     return;
   }
   if (m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
     pPatternBitmap->ConvertColorScale(m_Options.m_ForeColor,
                                       m_Options.m_BackColor);
   }
@@ skipping 76 matching lines @@
     }
   }
   if (bStroke) {
     CPDF_Color& StrokeColor = *pPathObj->m_ColorState.GetStrokeColor();
     if (StrokeColor.m_pCS && StrokeColor.m_pCS->GetFamily() == PDFCS_PATTERN) {
       DrawPathWithPattern(pPathObj, pObj2Device, &StrokeColor, TRUE);
       bStroke = FALSE;
     }
   }
 }