Replace QuicheStrCat() with absl::StrCat()

PiperOrigin-RevId: 345546830
Change-Id: Ia05b89070965c2fd3322f45ae8498f2d7d72de42
diff --git a/spdy/core/http2_priority_write_scheduler.h b/spdy/core/http2_priority_write_scheduler.h
index a58e224..ae65474 100644
--- a/spdy/core/http2_priority_write_scheduler.h
+++ b/spdy/core/http2_priority_write_scheduler.h
@@ -17,7 +17,7 @@
 #include <utility>
 #include <vector>
 
-#include "net/third_party/quiche/src/common/platform/api/quiche_str_cat.h"
+#include "absl/strings/str_cat.h"
 #include "net/third_party/quiche/src/spdy/core/spdy_intrusive_list.h"
 #include "net/third_party/quiche/src/spdy/core/spdy_protocol.h"
 #include "net/third_party/quiche/src/spdy/core/write_scheduler.h"
@@ -713,9 +713,9 @@
 
 template <typename StreamIdType>
 std::string Http2PriorityWriteScheduler<StreamIdType>::DebugString() const {
-  return quiche::QuicheStrCat(
-      "Http2PriorityWriteScheduler {num_registered_streams=",
-      NumRegisteredStreams(), " num_ready_streams=", NumReadyStreams(), "}");
+  return absl::StrCat("Http2PriorityWriteScheduler {num_registered_streams=",
+                      NumRegisteredStreams(),
+                      " num_ready_streams=", NumReadyStreams(), "}");
 }
 
 template <typename StreamIdType>