Use string pools in some dictionaries

core/fpdfapi/fpdf_edit/cpdf_pagecontentgenerator.cpp

 // Copyright 2016 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 "core/fpdfapi/fpdf_edit/include/cpdf_pagecontentgenerator.h"
 
 #include "core/fpdfapi/fpdf_edit/include/cpdf_creator.h"
 #include "core/fpdfapi/fpdf_page/include/cpdf_image.h"
@@ skipping 45 matching lines @@
   CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, nullptr);
   pStream->SetData(buf.GetBuffer(), buf.GetLength(), FALSE, FALSE);
   m_pDocument->AddIndirectObject(pStream);
   pPageDict->SetReferenceFor("Contents", m_pDocument, pStream->GetObjNum());
 }
 
 CFX_ByteString CPDF_PageContentGenerator::RealizeResource(
     CPDF_Object* pResourceObj,
     const CFX_ByteString& bsType) {
   if (!m_pPage->m_pResources) {
-    m_pPage->m_pResources = new CPDF_Dictionary;
+    m_pPage->m_pResources =
+        new CPDF_Dictionary(m_pDocument->GetByteStringPool());
     int objnum = m_pDocument->AddIndirectObject(m_pPage->m_pResources);
     m_pPage->m_pFormDict->SetReferenceFor("Resources", m_pDocument, objnum);
   }
   CPDF_Dictionary* pResList = m_pPage->m_pResources->GetDictFor(bsType);
   if (!pResList) {
-    pResList = new CPDF_Dictionary;
+    pResList = new CPDF_Dictionary(m_pDocument->GetByteStringPool());
     m_pPage->m_pResources->SetFor(bsType, pResList);
   }
   m_pDocument->AddIndirectObject(pResourceObj);
   CFX_ByteString name;
   int idnum = 1;
   while (1) {
     name.Format("FX%c%d", bsType[0], idnum);
     if (!pResList->KeyExist(name)) {
       break;
     }
@@ skipping 23 matching lines @@
 }
 
 void CPDF_PageContentGenerator::ProcessForm(CFX_ByteTextBuf& buf,
                                             const uint8_t* data,
                                             uint32_t size,
                                             CFX_Matrix& matrix) {
   if (!data || !size) {
     return;
   }
   CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, nullptr);
-  CPDF_Dictionary* pFormDict = new CPDF_Dictionary;
+  CPDF_Dictionary* pFormDict =
+      new CPDF_Dictionary(m_pDocument->GetByteStringPool());
   pFormDict->SetNameFor("Type", "XObject");
   pFormDict->SetNameFor("Subtype", "Form");
   CFX_FloatRect bbox = m_pPage->GetPageBBox();
   matrix.TransformRect(bbox);
   pFormDict->SetRectFor("BBox", bbox);
   pStream->InitStream(data, size, pFormDict);
   buf << "q " << matrix << " cm ";
   CFX_ByteString name = RealizeResource(pStream, "XObject");
   buf << "/" << PDF_NameEncode(name) << " Do Q\n";
 }
@@ skipping 36 matching lines @@
     CPDF_StreamAcc contentStream;
     contentStream.LoadAllData(pStream);
     ProcessForm(buf, contentStream.GetData(), contentStream.GetSize(), matrix);
   }
   CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, nullptr);
   pStream->SetData(buf.GetBuffer(), buf.GetLength(), FALSE, FALSE);
   m_pDocument->AddIndirectObject(pStream);
   m_pPage->m_pFormDict->SetReferenceFor("Contents", m_pDocument,
                                         pStream->GetObjNum());
 }