Pending upstream:
https://codereview.qt-project.org/c/qt/qtwebengine-chromium/+/473909
https://codereview.qt-project.org/c/qt/qtwebengine/+/473911

diff --git a/src/3rdparty/chromium/device/base/synchronization/one_writer_seqlock.cc b/src/3rdparty/chromium/device/base/synchronization/one_writer_seqlock.cc
index 213b630..98266a1 100644
--- a/src/3rdparty/chromium/device/base/synchronization/one_writer_seqlock.cc
+++ b/src/3rdparty/chromium/device/base/synchronization/one_writer_seqlock.cc
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <cstdint>
+
 #include "device/base/synchronization/one_writer_seqlock.h"
 
 namespace device {
diff --git a/src/3rdparty/chromium/gpu/command_buffer/common/webgpu_cmd_format.h b/src/3rdparty/chromium/gpu/command_buffer/common/webgpu_cmd_format.h
index 286a41c..25d2413 100644
--- a/src/3rdparty/chromium/gpu/command_buffer/common/webgpu_cmd_format.h
+++ b/src/3rdparty/chromium/gpu/command_buffer/common/webgpu_cmd_format.h
@@ -5,6 +5,7 @@
 #ifndef GPU_COMMAND_BUFFER_COMMON_WEBGPU_CMD_FORMAT_H_
 #define GPU_COMMAND_BUFFER_COMMON_WEBGPU_CMD_FORMAT_H_
 
+#include <cstdint>
 #include <string.h>
 
 #include "gpu/command_buffer/common/gl2_types.h"
diff --git a/src/3rdparty/chromium/gpu/command_buffer/service/shared_context_state.h b/src/3rdparty/chromium/gpu/command_buffer/service/shared_context_state.h
index bcba574..f4916be 100644
--- a/src/3rdparty/chromium/gpu/command_buffer/service/shared_context_state.h
+++ b/src/3rdparty/chromium/gpu/command_buffer/service/shared_context_state.h
@@ -5,6 +5,7 @@
 #ifndef GPU_COMMAND_BUFFER_SERVICE_SHARED_CONTEXT_STATE_H_
 #define GPU_COMMAND_BUFFER_SERVICE_SHARED_CONTEXT_STATE_H_
 
+#include <cstdint>
 #include <memory>
 #include <vector>
 
diff --git a/src/3rdparty/chromium/gpu/config/gpu_util.h b/src/3rdparty/chromium/gpu/config/gpu_util.h
index b4d6dfb..0dc300a 100644
--- a/src/3rdparty/chromium/gpu/config/gpu_util.h
+++ b/src/3rdparty/chromium/gpu/config/gpu_util.h
@@ -5,6 +5,8 @@
 #ifndef GPU_CONFIG_GPU_UTIL_H_
 #define GPU_CONFIG_GPU_UTIL_H_
 
+#include <cstdint>
+
 #include "build/build_config.h"
 #include "gpu/config/gpu_feature_info.h"
 #include "gpu/gpu_export.h"
diff --git a/src/3rdparty/chromium/third_party/blink/renderer/platform/graphics/dark_mode_image_classifier.cc b/src/3rdparty/chromium/third_party/blink/renderer/platform/graphics/dark_mode_image_classifier.cc
index fa755dd..040656b 100644
--- a/src/3rdparty/chromium/third_party/blink/renderer/platform/graphics/dark_mode_image_classifier.cc
+++ b/src/3rdparty/chromium/third_party/blink/renderer/platform/graphics/dark_mode_image_classifier.cc
@@ -4,6 +4,7 @@
 
 #include "third_party/blink/renderer/platform/graphics/dark_mode_image_classifier.h"
 
+#include <cstdint>
 #include <set>
 
 #include "base/memory/singleton.h"
diff --git a/src/3rdparty/chromium/third_party/libgav1/src/src/utils/threadpool.cc b/src/3rdparty/chromium/third_party/libgav1/src/src/utils/threadpool.cc
index 8c8f4fe..4e8788b 100644
--- a/src/3rdparty/chromium/third_party/libgav1/src/src/utils/threadpool.cc
+++ b/src/3rdparty/chromium/third_party/libgav1/src/src/utils/threadpool.cc
@@ -28,6 +28,7 @@
 #include <cassert>
 #include <cinttypes>
 #include <cstddef>
+#include <cstdio>
 #include <cstdint>
 #include <cstring>
 #include <new>
diff --git a/src/3rdparty/chromium/third_party/perfetto/src/trace_processor/importers/proto/proto_importer_module.h b/src/3rdparty/chromium/third_party/perfetto/src/trace_processor/importers/proto/proto_importer_module.h
index 74cc958..098433c 100644
--- a/src/3rdparty/chromium/third_party/perfetto/src/trace_processor/importers/proto/proto_importer_module.h
+++ b/src/3rdparty/chromium/third_party/perfetto/src/trace_processor/importers/proto/proto_importer_module.h
@@ -17,6 +17,8 @@
 #ifndef SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_PROTO_IMPORTER_MODULE_H_
 #define SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_PROTO_IMPORTER_MODULE_H_
 
+#include <cstdint>
+
 #include "perfetto/ext/base/optional.h"
 #include "perfetto/trace_processor/status.h"
 #include "src/trace_processor/trace_blob_view.h"
diff --git a/src/3rdparty/chromium/third_party/skia/src/utils/SkParseColor.cpp b/src/3rdparty/chromium/third_party/skia/src/utils/SkParseColor.cpp
index 0a19810..fcfe94c 100644
--- a/src/3rdparty/chromium/third_party/skia/src/utils/SkParseColor.cpp
+++ b/src/3rdparty/chromium/third_party/skia/src/utils/SkParseColor.cpp
@@ -9,10 +9,9 @@
 #include "include/utils/SkParse.h"
 
 #include <algorithm> // std::lower_bound
+#include <cstring>
 #include <iterator>
 
-#include <algorithm> // std::lower_bound
-
 static constexpr const char* gColorNames[] = {
     "aliceblue",
     "antiquewhite",
diff --git a/src/3rdparty/chromium/v8/src/base/macros.h b/src/3rdparty/chromium/v8/src/base/macros.h
index 37cab78..4220eac 100644
--- a/src/3rdparty/chromium/v8/src/base/macros.h
+++ b/src/3rdparty/chromium/v8/src/base/macros.h
@@ -5,6 +5,7 @@
 #ifndef V8_BASE_MACROS_H_
 #define V8_BASE_MACROS_H_
 
+#include <cstdint>
 #include <limits>
 #include <type_traits>
 
diff --git a/src/core/browsing_data_remover_delegate_qt.h b/src/core/browsing_data_remover_delegate_qt.h
index a10409f..5adfbbe 100644
--- a/src/core/browsing_data_remover_delegate_qt.h
+++ b/src/core/browsing_data_remover_delegate_qt.h
@@ -40,6 +40,8 @@
 #ifndef BROWSING_DATA_REMOVER_DELEGATE_QT_H
 #define BROWSING_DATA_REMOVER_DELEGATE_QT_H
 
+#include <cstdint>
+
 #include "content/public/browser/browsing_data_remover_delegate.h"
 
 namespace QtWebEngineCore {