message: Replace unavailable gtl::string_as_array with memory access
diff: @@ -79,13 +79,13 @@ TEST_F(S3FileSystemTest, NewRandomAccessFile) {
  got.resize(content.size());
  StringPiece result;
  TF_EXPECT_OK(
  - reader->Read(0, content.size(), &result, gtl::string_as_array(&got)));
  + reader->Read(0, content.size(), &result, &got[0]));
  EXPECT_EQ(content.size(), result.size());
  EXPECT_EQ(content, result);
  got.clear();
  got.resize(4);
  - TF_EXPECT_OK(reader->Read(2, 4, &result, gtl::string_as_array(&got)));
  + TF_EXPECT_OK(reader->Read(2, 4, &result, &got[0]));
  EXPECT_EQ(4, result.size());
  EXPECT_EQ(content.substr(2, 4), result);
  }
  