Change APIs to use FPDF_BYTESTRING for keys.

Change-Id: I865a9eeb197ea2c1f5480cae32d975909495676d
Reviewed-on: https://pdfium-review.googlesource.com/12551
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

1 files changed, 6 insertions, 8 deletions

diff --git a/samples/pdfium_test.cc b/samples/pdfium_test.cc
index b94b674286..40f12a318b 100644
--- a/samples/pdfium_test.cc
+++ b/samples/pdfium_test.cc
@@ -395,21 +395,19 @@ void WriteAnnot(FPDF_PAGE page, const char* pdf_name, int num) {
     }
 
     // Retrieve the annotation's contents and author.
-    std::unique_ptr<unsigned short, pdfium::FreeDeleter> contents_key =
-        GetFPDFWideString(L"Contents");
+    static constexpr char kContentsKey[] = "Contents";
+    static constexpr char kAuthorKey[] = "T";
     unsigned long len =
-        FPDFAnnot_GetStringValue(annot, contents_key.get(), nullptr, 0);
+        FPDFAnnot_GetStringValue(annot, kContentsKey, nullptr, 0);
     std::vector<char> buf(len);
-    FPDFAnnot_GetStringValue(annot, contents_key.get(), buf.data(), len);
+    FPDFAnnot_GetStringValue(annot, kContentsKey, buf.data(), len);
     fprintf(fp, "Content: %ls\n",
             GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data()))
                 .c_str());
-    std::unique_ptr<unsigned short, pdfium::FreeDeleter> author_key =
-        GetFPDFWideString(L"T");
-    len = FPDFAnnot_GetStringValue(annot, author_key.get(), nullptr, 0);
+    len = FPDFAnnot_GetStringValue(annot, kAuthorKey, nullptr, 0);
     buf.clear();
     buf.resize(len);
-    FPDFAnnot_GetStringValue(annot, author_key.get(), buf.data(), len);
+    FPDFAnnot_GetStringValue(annot, kAuthorKey, buf.data(), len);
     fprintf(fp, "Author: %ls\n",
             GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data()))
                 .c_str());