Fix leak in CPDF_StreamContentParser::AddTextObject().

core/fpdfapi/fpdf_render/fpdf_render_text.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/fpdfapi/fpdf_render/render_int.h"
 
 #include "core/fpdfapi/fpdf_font/cpdf_cidfont.h"
 #include "core/fpdfapi/fpdf_font/cpdf_type3char.h"
@@ skipping 717 matching lines @@
 }
 void CPDF_RenderStatus::DrawTextPathWithPattern(const CPDF_TextObject* textobj,
                                                 const CFX_Matrix* pObj2Device,
                                                 CPDF_Font* pFont,
                                                 FX_FLOAT font_size,
                                                 const CFX_Matrix* pTextMatrix,
                                                 FX_BOOL bFill,
                                                 FX_BOOL bStroke) {
   if (!bStroke) {
     CPDF_PathObject path;
-    CPDF_TextObject* pCopy = textobj->Clone();
+    std::vector<std::unique_ptr<CPDF_TextObject>> pCopy;
+    pCopy.push_back(std::unique_ptr<CPDF_TextObject>(textobj->Clone()));
     path.m_bStroke = FALSE;
     path.m_FillType = FXFILL_WINDING;
-    path.m_ClipPath.AppendTexts(&pCopy, 1);
+    path.m_ClipPath.AppendTexts(&pCopy);
     path.m_ColorState = textobj->m_ColorState;
     path.m_Path.New()->AppendRect(textobj->m_Left, textobj->m_Bottom,
                                   textobj->m_Right, textobj->m_Top);
     path.m_Left = textobj->m_Left;
     path.m_Bottom = textobj->m_Bottom;
     path.m_Right = textobj->m_Right;
     path.m_Top = textobj->m_Top;
     RenderSingleObject(&path, pObj2Device);
     return;
   }
@@ skipping 25 matching lines @@
     matrix.Concat(font_size, 0, 0, font_size, charpos.m_OriginX,
                   charpos.m_OriginY);
     path.m_Path.New()->Append(pPath, &matrix);
     path.m_Matrix = *pTextMatrix;
     path.m_bStroke = bStroke;
     path.m_FillType = bFill ? FXFILL_WINDING : 0;
     path.CalcBoundingBox();
     ProcessPath(&path, pObj2Device);
   }
 }