Comment two POD structs with raw c strings.

Justify why these won't be converted to a better string type.

Change-Id: Idc2c6effd3e23464b2e48bba2f0d42f0e1182ec6
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/65771
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
diff --git a/xfa/fgas/font/fgas_fontutils.h b/xfa/fgas/font/fgas_fontutils.h
index ecdcd87..91998d5 100644
--- a/xfa/fgas/font/fgas_fontutils.h
+++ b/xfa/fgas/font/fgas_fontutils.h
@@ -19,9 +19,9 @@
 const FGAS_FONTUSB* FGAS_GetUnicodeBitField(wchar_t wUnicode);
 
 struct FGAS_FontInfo {
-  uint32_t dwFontNameHash;  // WideString hash.
-  const char* pPsName;
-  const char* pReplaceFont;
+  uint32_t dwFontNameHash;   // WideString hash.
+  const char* pPsName;       // Raw, POD struct.
+  const char* pReplaceFont;  // Raw, POD struct.
   uint16_t dwStyles;
   uint16_t wCodePage;
 };
diff --git a/xfa/fxfa/cxfa_ffbarcode.h b/xfa/fxfa/cxfa_ffbarcode.h
index 367a8b0..83e0884 100644
--- a/xfa/fxfa/cxfa_ffbarcode.h
+++ b/xfa/fxfa/cxfa_ffbarcode.h
@@ -78,8 +78,8 @@
 };
 
 struct BarCodeInfo {
-  uint32_t uHash;  // |pName| hashed as if wide string.
-  const char* pName;
+  uint32_t uHash;     // |pName| hashed as if wide string.
+  const char* pName;  // Raw, POD struct.
   BarcodeType eName;
   BC_TYPE eBCType;
 };