chore: cherry-pick 3 changes from Release-5-M120

patches/chromium/.patches

@@ -143,3 +143,4 @@ fix_font_flooding_in_dev_tools.patch
 feat_allow_code_cache_in_custom_schemes.patch
 enable_partition_alloc_ref_count_size.patch
 reland_mojom_ts_generator_handle_empty_module_path_identically_to.patch
+cherry-pick-c1cda70a433a.patch

patches/chromium/cherry-pick-c1cda70a433a.patch

@@ -0,0 +1,31 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Mike Wasserman <msw@chromium.org>
+Date: Thu, 21 Dec 2023 22:33:05 +0000
+Subject: Speculative fix for UAF in
+ content::WebContentsImpl::ExitFullscreenMode
+
+Bug: 1506535, 854815
+Change-Id: Iace64d63f8cea2dbfbc761ad233db42451ec101c
+Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5146875
+Commit-Queue: John Abd-El-Malek <jam@chromium.org>
+Auto-Submit: Mike Wasserman <msw@chromium.org>
+Reviewed-by: John Abd-El-Malek <jam@chromium.org>
+Cr-Commit-Position: refs/heads/main@{#1240353}
+
+diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
+index a92c42ea05d680d435f6f69d9882e85537c995ec..e49ccf4ffc115a78abceeddd7f452aeeb5c6a917 100644
+--- a/content/browser/web_contents/web_contents_impl.cc
++++ b/content/browser/web_contents/web_contents_impl.cc
+@@ -3888,7 +3888,12 @@ void WebContentsImpl::ExitFullscreenMode(bool will_cause_resize) {
+   }
+
+   if (delegate_) {
++    // This may spin the message loop and destroy this object crbug.com/1506535
++    base::WeakPtr<WebContentsImpl> weak_ptr = weak_factory_.GetWeakPtr();
+     delegate_->ExitFullscreenModeForTab(this);
++    if (!weak_ptr) {
++      return;
++    }
+
+     if (keyboard_lock_widget_) {
+       delegate_->CancelKeyboardLockRequest(this);

patches/v8/.patches

@@ -3,3 +3,5 @@ do_not_export_private_v8_symbols_on_windows.patch
 fix_build_deprecated_attribute_for_older_msvc_versions.patch
 chore_allow_customizing_microtask_policy_per_context.patch
 cherry-pick-389ea9be7d68.patch
+cherry-pick-46cb67e3b296.patch
+cherry-pick-78dd4b31847a.patch

patches/v8/cherry-pick-46cb67e3b296.patch

@@ -0,0 +1,46 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Dominik=20Inf=C3=BChr?= <dinfuehr@chromium.org>
+Date: Mon, 18 Dec 2023 09:15:00 +0100
+Subject: Install BytecodeArray last in SharedFunctionInfo
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Maglev assumes that when a SharedFunctionInfo has a BytecodeArray,
+then it should also have FeedbackMetadata. However, this may not
+hold with concurrent compilation when the SharedFunctionInfo is
+re-compiled after being flushed. Here the BytecodeArray was installed
+on the SFI before the FeedbackMetadata and a concurrent thread could
+observe the BytecodeArray but not the FeedbackMetadata.
+
+Drive-by: Reset the age field before setting the BytecodeArray as
+well. This ensures that the concurrent marker will not observe the
+old age for the new BytecodeArray.
+
+Bug: chromium:1507412
+Change-Id: I8855ed7ecc50c4a47d2c89043d62ac053858bc75
+Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/5125960
+Reviewed-by: Leszek Swirski <leszeks@chromium.org>
+Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
+Cr-Commit-Position: refs/heads/main@{#91568}
+
+diff --git a/src/codegen/compiler.cc b/src/codegen/compiler.cc
+index 03860399e8b393cf315a507dbf5653381fc86d40..ff7360c10148657848440446e8d86bc4fcd51298 100644
+--- a/src/codegen/compiler.cc
++++ b/src/codegen/compiler.cc
+@@ -724,12 +724,12 @@ void InstallUnoptimizedCode(UnoptimizedCompilationInfo* compilation_info,
+     }
+ #endif  // V8_ENABLE_WEBASSEMBLY
+
+-    shared_info->set_bytecode_array(*compilation_info->bytecode_array());
+-    shared_info->set_age(0);
+-
+     Handle<FeedbackMetadata> feedback_metadata = FeedbackMetadata::New(
+         isolate, compilation_info->feedback_vector_spec());
+     shared_info->set_feedback_metadata(*feedback_metadata, kReleaseStore);
++
++    shared_info->set_age(0);
++    shared_info->set_bytecode_array(*compilation_info->bytecode_array());
+   } else {
+ #if V8_ENABLE_WEBASSEMBLY
+     DCHECK(compilation_info->has_asm_wasm_data());

patches/v8/cherry-pick-78dd4b31847a.patch

@@ -0,0 +1,27 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Leszek Swirski <leszeks@chromium.org>
+Date: Mon, 8 Jan 2024 11:13:58 +0100
+Subject: Fix allocation folding in derived constructors
+
+Bug: v8:7700
+Change-Id: Ia33724d39d1397c7d47c36d14071abce6ed4b0fc
+Fixed: chromium:1515930
+Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/5173470
+Commit-Queue: Patrick Thier <pthier@chromium.org>
+Reviewed-by: Patrick Thier <pthier@chromium.org>
+Commit-Queue: Leszek Swirski <leszeks@chromium.org>
+Auto-Submit: Leszek Swirski <leszeks@chromium.org>
+Cr-Commit-Position: refs/heads/main@{#91709}
+
+diff --git a/src/maglev/maglev-graph-builder.cc b/src/maglev/maglev-graph-builder.cc
+index 2b660f5a8681a854b799d54761c425b04d1d0444..31c114481dee5bd171700acf321c79d941c6df98 100644
+--- a/src/maglev/maglev-graph-builder.cc
++++ b/src/maglev/maglev-graph-builder.cc
+@@ -5210,6 +5210,7 @@ bool MaglevGraphBuilder::TryBuildFindNonDefaultConstructorOrConstruct(
+           object = BuildAllocateFastObject(
+               FastObject(new_target_function->AsJSFunction(), zone(), broker()),
+               AllocationType::kYoung);
++          ClearCurrentRawAllocation();
+         } else {
+           object = BuildCallBuiltin<Builtin::kFastNewObject>(
+               {GetConstant(current_function), new_target});