Make ifdefs consistent in zib.

third_party/zlib/google/zip_reader.cc

Index: third_party/zlib/google/zip_reader.cc
diff --git a/third_party/zlib/google/zip_reader.cc b/third_party/zlib/google/zip_reader.cc
index fdeb1259b3a0f4d9911c2300c98223a3e0c70ca8..ff5a39514af113d28f5266d2c119d51a4d386328 100644
--- a/third_party/zlib/google/zip_reader.cc
+++ b/third_party/zlib/google/zip_reader.cc
@@ -514,11 +514,9 @@ FileWriterDelegate::FileWriterDelegate(base::File* file)
 }
 
 FileWriterDelegate::~FileWriterDelegate() {
-#if !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)
-  const bool success =
-#endif
-      file_->SetLength(file_length_);
-  DPLOG_IF(ERROR, !success) << "Failed updating length of written file";
+  if (!file_->SetLength(file_length_)) {
+    DPLOG(ERROR) << "Failed updating length of written file";
+  }
 }
 
 bool FileWriterDelegate::PrepareOutput() {