Use string pools in some dictionaries

core/fpdfapi/fpdf_page/cpdf_image.cpp

Index: core/fpdfapi/fpdf_page/cpdf_image.cpp
diff --git a/core/fpdfapi/fpdf_page/cpdf_image.cpp b/core/fpdfapi/fpdf_page/cpdf_image.cpp
index 02e492b27d18898547a0ec5736e145af1ea10916..39607dacd54300ecb209acefcd3614a4e0f2167d 100644
--- a/core/fpdfapi/fpdf_page/cpdf_image.cpp
+++ b/core/fpdfapi/fpdf_page/cpdf_image.cpp
@@ -85,7 +85,8 @@ CPDF_Dictionary* CPDF_Image::InitJPEG(uint8_t* pData, uint32_t size) {
     return nullptr;
   }
 
-  CPDF_Dictionary* pDict = new CPDF_Dictionary;
+  CPDF_Dictionary* pDict =
+      new CPDF_Dictionary(m_pDocument->GetByteStringPool());
   pDict->SetNameFor("Type", "XObject");
   pDict->SetNameFor("Subtype", "Image");
   pDict->SetIntegerFor("Width", width);
@@ -108,7 +109,8 @@ CPDF_Dictionary* CPDF_Image::InitJPEG(uint8_t* pData, uint32_t size) {
   pDict->SetIntegerFor("BitsPerComponent", bits);
   pDict->SetNameFor("Filter", "DCTDecode");
   if (!color_trans) {
-    CPDF_Dictionary* pParms = new CPDF_Dictionary;
+    CPDF_Dictionary* pParms =
+        new CPDF_Dictionary(m_pDocument->GetByteStringPool());
     pDict->SetFor("DecodeParms", pParms);
     pParms->SetIntegerFor("ColorTransform", 0);
   }
@@ -150,7 +152,8 @@ void CPDF_Image::SetImage(const CFX_DIBitmap* pBitmap, int32_t iCompress) {
   int32_t src_pitch = pBitmap->GetPitch();
   int32_t bpp = pBitmap->GetBPP();
 
-  CPDF_Dictionary* pDict = new CPDF_Dictionary;
+  CPDF_Dictionary* pDict =
+      new CPDF_Dictionary(m_pDocument->GetByteStringPool());
   pDict->SetNameFor("Type", "XObject");
   pDict->SetNameFor("Subtype", "Image");
   pDict->SetIntegerFor("Width", BitmapWidth);
@@ -214,8 +217,9 @@ void CPDF_Image::SetImage(const CFX_DIBitmap* pBitmap, int32_t iCompress) {
         ptr[2] = (uint8_t)argb;
         ptr += 3;
       }
-      CPDF_Stream* pCTS =
-          new CPDF_Stream(pColorTable, iPalette * 3, new CPDF_Dictionary);
+      CPDF_Stream* pCTS = new CPDF_Stream(
+          pColorTable, iPalette * 3,
+          new CPDF_Dictionary(m_pDocument->GetByteStringPool()));
       m_pDocument->AddIndirectObject(pCTS);
       pCS->AddReference(m_pDocument, pCTS);
       pDict->SetReferenceFor("ColorSpace", m_pDocument, pCS);
@@ -250,7 +254,8 @@ void CPDF_Image::SetImage(const CFX_DIBitmap* pBitmap, int32_t iCompress) {
     int32_t maskHeight = pMaskBitmap->GetHeight();
     uint8_t* mask_buf = nullptr;
     FX_STRSIZE mask_size = 0;
-    CPDF_Dictionary* pMaskDict = new CPDF_Dictionary;
+    CPDF_Dictionary* pMaskDict =
+        new CPDF_Dictionary(m_pDocument->GetByteStringPool());
     pMaskDict->SetNameFor("Type", "XObject");
     pMaskDict->SetNameFor("Subtype", "Image");
     pMaskDict->SetIntegerFor("Width", maskWidth);