BUILD.gn: skia_enable_pdf

BUG=skia:

Change-Id: Icf616bec73e81aad97815b519566ff5b9db611e3
Reviewed-on: https://skia-review.googlesource.com/6495
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
diff --git a/tests/PDFJpegEmbedTest.cpp b/tests/PDFJpegEmbedTest.cpp
index 17dbac8..100c9b3 100644
--- a/tests/PDFJpegEmbedTest.cpp
+++ b/tests/PDFJpegEmbedTest.cpp
@@ -9,7 +9,6 @@
 #include "SkData.h"
 #include "SkDocument.h"
 #include "SkImageGenerator.h"
-#include "SkJpegInfo.h"
 #include "SkStream.h"
 
 #include "Resources.h"
@@ -80,6 +79,10 @@
     REPORTER_ASSERT(r, !is_subset_of(cmykData.get(), pdfData.get()));
 }
 
+#ifdef SK_SUPPORT_PDF
+
+#include "SkJpegInfo.h"
+
 DEF_TEST(SkPDF_JpegIdentification, r) {
     static struct {
         const char* path;
@@ -208,3 +211,4 @@
         REPORTER_ASSERT(r, !SkIsJFIF(data.get(), &info));
     }
 }
+#endif