Add missing const to data param of LLVMFuzzerTestOneInupt

Change-Id: I663564ce66a7f41aef466d47373f89557992a2b6
Reviewed-on: https://chromium-review.googlesource.com/c/1358918Reviewed-by: Daniel Rubery <drubery@chromium.org>
Commit-Queue: Jonathan Metzman <metzman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#613162}

chrome/common/safe_browsing/binary_feature_extractor_fuzzer.cc

@@ -11,7 +11,7 @@
 
 #include "components/safe_browsing/proto/csd.pb.h"
 
-extern "C" int LLVMFuzzerTestOneInput(uint8_t* data, size_t size) {
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   static safe_browsing::BinaryFeatureExtractor* extractor =
       new safe_browsing::BinaryFeatureExtractor();