Use more unique_ptrs in CPDF_Image.

core/fpdfapi/page/cpdf_pathobject.cpp

Index: core/fpdfapi/page/cpdf_pathobject.cpp
diff --git a/core/fpdfapi/page/cpdf_pathobject.cpp b/core/fpdfapi/page/cpdf_pathobject.cpp
index a25f7891a659749f3285bfbbbda4809468742cd8..27c4535fa54d891949b6651dc0cafae4a5200874 100644
--- a/core/fpdfapi/page/cpdf_pathobject.cpp
+++ b/core/fpdfapi/page/cpdf_pathobject.cpp
@@ -10,17 +10,6 @@ CPDF_PathObject::CPDF_PathObject() {}
 
 CPDF_PathObject::~CPDF_PathObject() {}
 
-CPDF_PathObject* CPDF_PathObject::Clone() const {
-  CPDF_PathObject* obj = new CPDF_PathObject;
-  obj->CopyData(this);
-
-  obj->m_Path = m_Path;
-  obj->m_FillType = m_FillType;
-  obj->m_bStroke = m_bStroke;
-  obj->m_Matrix = m_Matrix;
-  return obj;
-}
-
 CPDF_PageObject::Type CPDF_PathObject::GetType() const {
   return PATH;
 }