Change FPDFImageObj_GetImageFilter() to return byte strings.

Since the returned data is a key, it should be a byte string and not a
wide string.

Change-Id: I9243d88586ea5b13c4b6556479d17316bf07e32e
Reviewed-on: https://pdfium-review.googlesource.com/12710
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

1 files changed, 12 insertions, 12 deletions

diff --git a/fpdfsdk/fpdfedit_embeddertest.cpp b/fpdfsdk/fpdfedit_embeddertest.cpp
index 6dc177e2b5..71933fea43 100644
--- a/fpdfsdk/fpdfedit_embeddertest.cpp
+++ b/fpdfsdk/fpdfedit_embeddertest.cpp
@@ -1056,10 +1056,10 @@ TEST_F(FPDFEditEmbeddertest, GetImageFilters) {
   ASSERT_EQ(1, FPDFImageObj_GetImageFilterCount(obj));
   unsigned long len = FPDFImageObj_GetImageFilter(obj, 0, nullptr, 0);
   std::vector<char> buf(len);
-  EXPECT_EQ(24u, FPDFImageObj_GetImageFilter(obj, 0, buf.data(), len));
-  EXPECT_STREQ(L"FlateDecode",
-               GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data()))
-                   .c_str());
+  static constexpr char kFlateDecode[] = "FlateDecode";
+  EXPECT_EQ(sizeof(kFlateDecode),
+            FPDFImageObj_GetImageFilter(obj, 0, buf.data(), len));
+  EXPECT_STREQ(kFlateDecode, buf.data());
   EXPECT_EQ(0u, FPDFImageObj_GetImageFilter(obj, 1, nullptr, 0));
 
   // Verify all the filters for an image object with a list of filters.
@@ -1069,18 +1069,18 @@ TEST_F(FPDFEditEmbeddertest, GetImageFilters) {
   len = FPDFImageObj_GetImageFilter(obj, 0, nullptr, 0);
   buf.clear();
   buf.resize(len);
-  EXPECT_EQ(30u, FPDFImageObj_GetImageFilter(obj, 0, buf.data(), len));
-  EXPECT_STREQ(L"ASCIIHexDecode",
-               GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data()))
-                   .c_str());
+  static constexpr char kASCIIHexDecode[] = "ASCIIHexDecode";
+  EXPECT_EQ(sizeof(kASCIIHexDecode),
+            FPDFImageObj_GetImageFilter(obj, 0, buf.data(), len));
+  EXPECT_STREQ(kASCIIHexDecode, buf.data());
 
   len = FPDFImageObj_GetImageFilter(obj, 1, nullptr, 0);
   buf.clear();
   buf.resize(len);
-  EXPECT_EQ(20u, FPDFImageObj_GetImageFilter(obj, 1, buf.data(), len));
-  EXPECT_STREQ(L"DCTDecode",
-               GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data()))
-                   .c_str());
+  static constexpr char kDCTDecode[] = "DCTDecode";
+  EXPECT_EQ(sizeof(kDCTDecode),
+            FPDFImageObj_GetImageFilter(obj, 1, buf.data(), len));
+  EXPECT_STREQ(kDCTDecode, buf.data());
 
   UnloadPage(page);
 }