diff --git a/engine/src/flutter/display_list/dl_storage.h b/engine/src/flutter/display_list/dl_storage.h
index 879fae42340..acfa2de7754 100644
--- a/engine/src/flutter/display_list/dl_storage.h
+++ b/engine/src/flutter/display_list/dl_storage.h
@@ -5,6 +5,7 @@
 #ifndef FLUTTER_DISPLAY_LIST_DL_STORAGE_H_
 #define FLUTTER_DISPLAY_LIST_DL_STORAGE_H_
 
+#include <cstdint>
 #include <memory>
 
 #include "flutter/fml/logging.h"
diff --git a/engine/src/flutter/display_list/dl_text.h b/engine/src/flutter/display_list/dl_text.h
index ae1dbabdd5e..ea9337ddd53 100644
--- a/engine/src/flutter/display_list/dl_text.h
+++ b/engine/src/flutter/display_list/dl_text.h
@@ -5,6 +5,8 @@
 #ifndef FLUTTER_DISPLAY_LIST_DL_TEXT_H_
 #define FLUTTER_DISPLAY_LIST_DL_TEXT_H_
 
+#include <memory>
+
 #include "flutter/display_list/geometry/dl_geometry_types.h"
 
 namespace impeller {
diff --git a/engine/src/flutter/fml/synchronization/semaphore.h b/engine/src/flutter/fml/synchronization/semaphore.h
index 0bb17602867..6e33cbd28c0 100644
--- a/engine/src/flutter/fml/synchronization/semaphore.h
+++ b/engine/src/flutter/fml/synchronization/semaphore.h
@@ -5,6 +5,7 @@
 #ifndef FLUTTER_FML_SYNCHRONIZATION_SEMAPHORE_H_
 #define FLUTTER_FML_SYNCHRONIZATION_SEMAPHORE_H_
 
+#include <cstdint>
 #include <memory>
 
 #include "flutter/fml/macros.h"
diff --git a/engine/src/flutter/impeller/renderer/backend/gles/handle_gles.h b/engine/src/flutter/impeller/renderer/backend/gles/handle_gles.h
index e6f51d2caae..a6234ebc147 100644
--- a/engine/src/flutter/impeller/renderer/backend/gles/handle_gles.h
+++ b/engine/src/flutter/impeller/renderer/backend/gles/handle_gles.h
@@ -5,6 +5,7 @@
 #ifndef FLUTTER_IMPELLER_RENDERER_BACKEND_GLES_HANDLE_GLES_H_
 #define FLUTTER_IMPELLER_RENDERER_BACKEND_GLES_HANDLE_GLES_H_
 
+#include <cstdint>
 #include <optional>
 #include <sstream>
 #include <string>
diff --git a/engine/src/flutter/impeller/typographer/font.h b/engine/src/flutter/impeller/typographer/font.h
index a48f8822dc2..b671a3bb269 100644
--- a/engine/src/flutter/impeller/typographer/font.h
+++ b/engine/src/flutter/impeller/typographer/font.h
@@ -5,6 +5,7 @@
 #ifndef FLUTTER_IMPELLER_TYPOGRAPHER_FONT_H_
 #define FLUTTER_IMPELLER_TYPOGRAPHER_FONT_H_
 
+#include <cstdint>
 #include <memory>
 
 #include "fml/hash_combine.h"
diff --git a/engine/src/flutter/shell/platform/common/client_wrapper/include/flutter/binary_messenger.h b/engine/src/flutter/shell/platform/common/client_wrapper/include/flutter/binary_messenger.h
index d552b499ee2..553ba0bba49 100644
--- a/engine/src/flutter/shell/platform/common/client_wrapper/include/flutter/binary_messenger.h
+++ b/engine/src/flutter/shell/platform/common/client_wrapper/include/flutter/binary_messenger.h
@@ -5,6 +5,7 @@
 #ifndef FLUTTER_SHELL_PLATFORM_COMMON_CLIENT_WRAPPER_INCLUDE_FLUTTER_BINARY_MESSENGER_H_
 #define FLUTTER_SHELL_PLATFORM_COMMON_CLIENT_WRAPPER_INCLUDE_FLUTTER_BINARY_MESSENGER_H_
 
+#include <cstdint>
 #include <functional>
 #include <string>
 
diff --git a/engine/src/flutter/tools/licenses_cpp/src/filter.cc b/engine/src/flutter/tools/licenses_cpp/src/filter.cc
index b4626f0ed1e..b81999fd089 100644
--- a/engine/src/flutter/tools/licenses_cpp/src/filter.cc
+++ b/engine/src/flutter/tools/licenses_cpp/src/filter.cc
@@ -6,7 +6,7 @@
 #include <fstream>
 #include "third_party/abseil-cpp/absl/strings/str_cat.h"
 
-absl::StatusOr<Filter> Filter::Open(std::string_view path) {
+absl::StatusOr<Filter> Filter::Open(const std::string& path) {
   std::ifstream input;
   input.open(path);
   absl::StatusOr<Filter> result = Open(input);
diff --git a/engine/src/flutter/tools/licenses_cpp/src/filter.h b/engine/src/flutter/tools/licenses_cpp/src/filter.h
index a213b258612..4e35169f780 100644
--- a/engine/src/flutter/tools/licenses_cpp/src/filter.h
+++ b/engine/src/flutter/tools/licenses_cpp/src/filter.h
@@ -16,7 +16,7 @@
 /// This is used for things like the include.txt and exclude.txt.
 class Filter {
  public:
-  static absl::StatusOr<Filter> Open(std::string_view path);
+  static absl::StatusOr<Filter> Open(const std::string& path);
 
   static absl::StatusOr<Filter> Open(std::istream& input);