Merge to XFA: Use static_cast for various CPDF_Object conversions.

core/src/fpdfdoc/doc_form.cpp

Index: core/src/fpdfdoc/doc_form.cpp
diff --git a/core/src/fpdfdoc/doc_form.cpp b/core/src/fpdfdoc/doc_form.cpp
index 3192445d90a286b30752f6ce49f91a17cacecb23..c155b947d942cda8bd92ae91671d642225d178ee 100644
--- a/core/src/fpdfdoc/doc_form.cpp
+++ b/core/src/fpdfdoc/doc_form.cpp
@@ -1186,7 +1186,7 @@ CFDF_Document* CPDF_InterForm::ExportToFDF(const CFX_WideStringC& pdf_path,
     } else {
       CPDF_FileSpec filespec;
       filespec.SetFileName(pdf_path);
-      pMainDict->SetAt("F", (CPDF_Object*)filespec);
+      pMainDict->SetAt("F", static_cast<CPDF_Object*>(filespec));
     }
   }
   CPDF_Array* pFields = CPDF_Array::Create();