MD5Update function uses StringPiece instead of raw buffer.

media/tools/media_bench/media_bench.cc

Index: media/tools/media_bench/media_bench.cc
diff --git a/media/tools/media_bench/media_bench.cc b/media/tools/media_bench/media_bench.cc
index 1d3872a43218c3250877e14b508b4d45d776f601..66c3536ee23bb37786d9a7a5924f3d2bb00e479c 100644
--- a/media/tools/media_bench/media_bench.cc
+++ b/media/tools/media_bench/media_bench.cc
@@ -426,8 +426,12 @@ int main(int argc, const char** argv) {
           if (hash_djb2) {
             hash_value = DJB2Hash(u8_samples, size_out, hash_value);
           }
-          if (hash_md5)
-            base::MD5Update(&ctx, u8_samples, size_out);
+          if (hash_md5) {
+            base::MD5Update(
+                &ctx,
+                base::StringPiece(reinterpret_cast<const char*>(u8_samples),
+                                                                size_out));
+          }
         }
       } else if (target_codec == AVMEDIA_TYPE_VIDEO) {
         int got_picture = 0;
@@ -487,8 +491,10 @@ int main(int argc, const char** argv) {
             }
             if (hash_md5) {
               for (size_t i = 0; i < copy_lines; ++i) {
-                base::MD5Update(&ctx, reinterpret_cast<const uint8*>(source),
-                                bytes_per_line);
+                base::MD5Update(
+                    &ctx,
+                    base::StringPiece(reinterpret_cast<const char*>(source),
+                                      bytes_per_line));
                 source += source_stride;
               }
             }