Fix two new / free mismatches

core/src/fpdfdoc/doc_metadata.cpp

Index: core/src/fpdfdoc/doc_metadata.cpp
diff --git a/core/src/fpdfdoc/doc_metadata.cpp b/core/src/fpdfdoc/doc_metadata.cpp
index bf55527d62c4872bcf01affa4da5495c53b6e4e7..232f6eea21534398cb7aa9a6e1de32ae582c0f8f 100644
--- a/core/src/fpdfdoc/doc_metadata.cpp
+++ b/core/src/fpdfdoc/doc_metadata.cpp
@@ -28,7 +28,7 @@ CPDF_Metadata::CPDF_Metadata()
 {
     m_pData = FX_Alloc(PDFDOC_METADATA, 1);
     CFX_CMapByteStringToPtr *&pStringMap = ((PDFDOC_LPMETADATA)m_pData)->m_pStringMap;
-    pStringMap = FX_NEW(CFX_CMapByteStringToPtr);
+    pStringMap = FX_NEW CFX_CMapByteStringToPtr;
     if (pStringMap != NULL) {
         CFX_ByteString bstr;
         for (int i = 0; i < 18; i += 2) {
@@ -41,13 +41,11 @@ CPDF_Metadata::~CPDF_Metadata()
 {
     FXSYS_assert(m_pData != NULL);
     CXML_Element *&p = ((PDFDOC_LPMETADATA)m_pData)->m_pXmlElmnt;
-    if (p) {
-        delete p;
-    }
+    delete p;
     CFX_CMapByteStringToPtr *pStringMap = ((PDFDOC_LPMETADATA)m_pData)->m_pStringMap;
     if (pStringMap) {
         pStringMap->RemoveAll();
-        FX_Free(pStringMap);
+        delete pStringMap;
     }
     FX_Free(m_pData);
 }