Use the uint64_t specialization of std::min in qpack_encoder.cc
to fix Chrome build breakage where size_t != uint64_t.

gfe-relnote: n/a - QUIC v99 only. Protected by disabled flag
PiperOrigin-RevId: 264699365
Change-Id: Ie92246e835f6c1eb1b25c468196e6f13b3bbfdd9
diff --git a/quic/core/qpack/qpack_encoder.cc b/quic/core/qpack/qpack_encoder.cc
index 6485071..31bebcc 100644
--- a/quic/core/qpack/qpack_encoder.cc
+++ b/quic/core/qpack/qpack_encoder.cc
@@ -180,8 +180,8 @@
             instructions.push_back(EncodeIndexedHeaderField(
                 /* is_static = */ false, entry->InsertionIndex(),
                 referred_indices));
-            smallest_blocking_index =
-                std::min(smallest_blocking_index, entry->InsertionIndex());
+            smallest_blocking_index = std::min<uint64_t>(
+                smallest_blocking_index, entry->InsertionIndex());
 
             break;
           }
@@ -243,8 +243,8 @@
           instructions.push_back(EncodeIndexedHeaderField(
               /* is_static = */ false, entry->InsertionIndex(),
               referred_indices));
-          smallest_blocking_index =
-              std::min(smallest_blocking_index, entry->InsertionIndex());
+          smallest_blocking_index = std::min<uint64_t>(smallest_blocking_index,
+                                                       entry->InsertionIndex());
 
           break;
         }