fix ci failures

Author: bajajneha27

google/cloud/storage/google_cloud_cpp_storage.bzl

@@ -117,6 +117,7 @@ google_cloud_cpp_storage_hdrs = [
     "internal/well_known_parameters_impl.h",
     "lifecycle_rule.h",
     "list_buckets_reader.h",
+    "list_buckets_partial_reader.h",
     "list_hmac_keys_reader.h",
     "list_objects_and_prefixes_reader.h",
     "list_objects_reader.h",

google/cloud/storage/google_cloud_cpp_storage.cmake

@@ -198,6 +198,7 @@ add_library(
     internal/win32/hash_function_impl.cc
     lifecycle_rule.cc
     lifecycle_rule.h
+    list_buckets_partial_reader.h
     list_buckets_reader.cc
     list_buckets_reader.h
     list_hmac_keys_reader.cc

google/cloud/storage/internal/bucket_requests.h

@@ -60,12 +60,6 @@ class ListBucketsRequest
 
 std::ostream& operator<<(std::ostream& os, ListBucketsRequest const& r);
 
-struct ListBucketsResult {
-  std::string page_token;
-  std::vector<BucketMetadata> items;
-  std::vector<std::string> unreachable;
-};
-
 struct ListBucketsResponse {
   static StatusOr<ListBucketsResponse> FromHttpResponse(
       std::string const& payload);

google/cloud/storage/internal/grpc/bucket_request_parser_test.cc

@@ -217,7 +217,7 @@ TEST(GrpcBucketRequestParser, ListBucketsResponse) {
           bucket_id: "test-bucket-2"
         }
         unreachable { "projects/_/buckets/bucket1"
-                      "projects/1234567/locations/location1" }
+                      "projects/_/buckets/bucket2" }
         next_page_token: "test-token"
       )pb",
       &input));