Skip octane/pdfjs for now in debug mode because slow.

test/benchmarks/benchmarks.status

Index: test/benchmarks/benchmarks.status
diff --git a/test/benchmarks/benchmarks.status b/test/benchmarks/benchmarks.status
index 3bdacc2a9f2cd9b104909d59f6c466b2a44608dc..a08fa41c1546ccf3f5030bb9c5c08b0af153226a 100644
--- a/test/benchmarks/benchmarks.status
+++ b/test/benchmarks/benchmarks.status
@@ -29,5 +29,7 @@
 [ALWAYS, {
   # Too slow in Debug mode.
   'octane/mandreel': [PASS, ['mode == debug', SKIP]],
+  # TODO(turbofan): Too slow in debug mode for now.
+  'octane/pdfjs': [PASS, ['mode == debug', SKIP]],
 }],  # ALWAYS
 ]