Fix FPDFFormFillEmbedderTest.RemoveFormFieldHighlight for Skia.

Skia uses different font face rendering methods compared to AGG, which
leads to the text rendering discrepancy for Helvetica font in this test
(See https://crbug.com/pdfium/1500#c7).

Since Skia's rendering results are acceptable and Skia is working as
intended, this CL adds expected results for Skia to make this embedder
test pass.

Bug: pdfium:1500
Change-Id: If83966419172971b36327bb8d6282fb44e96018f
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/69510
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Hui Yingst <nigi@chromium.org>
diff --git a/fpdfsdk/fpdf_formfill_embeddertest.cpp b/fpdfsdk/fpdf_formfill_embeddertest.cpp
index 03d9c22..174e9c1 100644
--- a/fpdfsdk/fpdf_formfill_embeddertest.cpp
+++ b/fpdfsdk/fpdf_formfill_embeddertest.cpp
@@ -1351,12 +1351,10 @@
   UnloadPage(page);
 }
 
+TEST_F(FPDFFormFillEmbedderTest, RemoveFormFieldHighlight) {
 #if defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
-#define MAYBE_RemoveFormFieldHighlight DISABLED_RemoveFormFieldHighlight
+  const char kMd5NoHighlight[] = "6fe3921e4fe3f4190c248acf34e9bd3b";
 #else
-#define MAYBE_RemoveFormFieldHighlight RemoveFormFieldHighlight
-#endif
-TEST_F(FPDFFormFillEmbedderTest, MAYBE_RemoveFormFieldHighlight) {
 #if defined(OS_MACOSX)
   const char kMd5NoHighlight[] = "5e4b87c5b304c6fa9bd5f6311260494e";
 #elif defined(OS_WIN)
@@ -1364,6 +1362,7 @@
 #else
   const char kMd5NoHighlight[] = "006010c318457810a518aa5e0b33c498";
 #endif
+#endif  // defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
 
   EXPECT_TRUE(OpenDocument("text_form.pdf"));
   FPDF_PAGE page = LoadPage(0);