ci failure fix

Author: bajajneha27

google/cloud/storage/async/options.h

@@ -83,7 +83,7 @@ struct UseMD5ValueOption {
  * @endcode
  */
 struct MaximumRangeSizeOption {
-  using Type = std::uint64_t;
+  using Type = std::int64_t;
 };
 
 GOOGLE_CLOUD_CPP_INLINE_NAMESPACE_END

google/cloud/storage/internal/async/object_descriptor_impl.cc

@@ -42,7 +42,7 @@ ObjectDescriptorImpl::ObjectDescriptorImpl(
       streams_{std::move(stream)} {}
 
 ObjectDescriptorImpl::~ObjectDescriptorImpl() {
-  for (auto stream : streams_) {
+  for (auto const& stream : streams_) {
     stream->Cancel();
   }
 }
@@ -53,7 +53,7 @@ void ObjectDescriptorImpl::Start(
 }
 
 void ObjectDescriptorImpl::Cancel() {
-  for (auto stream : streams_) {
+  for (auto const& stream : streams_) {
     stream->Cancel();
   }
 }

google/cloud/storage/internal/async/object_descriptor_impl.h

@@ -101,7 +101,6 @@ class ObjectDescriptorImpl
 
   mutable std::mutex mu_;
   google::storage::v2::BidiReadObjectSpec read_object_spec_;
-  std::shared_ptr<OpenStream> stream_;
   absl::optional<google::storage::v2::Object> metadata_;
   std::int64_t read_id_generator_ = 0;
   bool write_pending_ = false;