Free the GifPlainText object when complete.

core/fxcodec/lgif/fx_gif.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 "core/fxcodec/lgif/fx_gif.h"
 
 #include "core/fxcodec/lbmp/fx_bmp.h"
 
@@ skipping 400 matching lines @@
   }
   delete gif_ptr->cmt_data_ptr;
   FX_Free(gif_ptr->gce_ptr);
   if (gif_ptr->pt_ptr_arr_ptr) {
     int32_t size_pt_arr = gif_ptr->pt_ptr_arr_ptr->GetSize();
     for (int32_t i = 0; i < size_pt_arr; i++) {
       GifPlainText* p = gif_ptr->pt_ptr_arr_ptr->GetAt(i);
       FX_Free(p->gce_ptr);
       FX_Free(p->pte_ptr);
       delete p->string_ptr;
+      FX_Free(p);
     }
     gif_ptr->pt_ptr_arr_ptr->RemoveAll();
     delete gif_ptr->pt_ptr_arr_ptr;
   }
   FX_Free(gif_ptr);
 }
 gif_compress_struct_p gif_create_compress() {
   gif_compress_struct_p gif_ptr =
       (gif_compress_struct*)FX_Alloc(uint8_t, sizeof(gif_compress_struct));
   if (!gif_ptr)
@@ skipping 805 matching lines @@
     gif_ptr->cur_offset = cur_offset;
     res = FALSE;
   }
   dst_len = gif_ptr->cur_offset;
   dst_buf[dst_len - 1] = GIF_SIG_TRAILER;
   if (res) {
     gif_ptr->frames++;
   }
   return res;
 }