[Clean-up] Fix Abseil-usage (#35590)

Some minor fixes for https://github.com/grpc/grpc/pull/35589

Closes #35590

COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/35590 from veblush:abseil-fix a89b800739
PiperOrigin-RevId: 599524969

src/core/BUILD

@@ -6712,6 +6712,9 @@ grpc_cc_library(
     hdrs = [
         "lib/transport/message.h",
     ],
+    external_deps = [
+        "absl/strings",
+    ],
     deps = [
         "arena",
         "slice_buffer",

src/core/lib/event_engine/cf_engine/cfstream_endpoint.cc

@@ -18,6 +18,10 @@
 #include <AvailabilityMacros.h>
 #ifdef AVAILABLE_MAC_OS_X_VERSION_10_12_AND_LATER
 
+#include "absl/status/status.h"
+#include "absl/strings/str_cat.h"
+#include "absl/strings/str_format.h"
+
 #include "src/core/lib/event_engine/cf_engine/cfstream_endpoint.h"
 #include "src/core/lib/event_engine/trace.h"
 #include "src/core/lib/gprpp/strerror.h"

src/core/lib/event_engine/windows/native_windows_dns_resolver.cc

@@ -20,6 +20,7 @@
 
 #include <string>
 
+#include "absl/strings/str_cat.h"
 #include "absl/strings/str_format.h"
 
 #include <grpc/event_engine/event_engine.h>

src/core/lib/gprpp/windows/directory_reader.cc

@@ -27,6 +27,7 @@
 #include <vector>
 
 #include "absl/status/statusor.h"
+#include "absl/strings/str_cat.h"
 #include "absl/strings/string_view.h"
 
 #include <grpc/support/log.h>

src/core/lib/transport/message.cc

@@ -16,6 +16,8 @@
 
 #include "src/core/lib/transport/message.h"
 
+#include "absl/strings/str_cat.h"
+
 #include <grpc/impl/grpc_types.h>
 
 namespace grpc_core {

test/cpp/util/channelz_sampler.cc

@@ -21,6 +21,7 @@
 
 #include <cstdlib>
 #include <fstream>
+#include <iomanip>
 #include <iostream>
 #include <memory>
 #include <ostream>