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chore: [28-x-y] cherry-pick 1 changes from 0-M124
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* 0d9350b71fd0 from chromium
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ppontes committed Apr 28, 2024
1 parent 1768c3b commit de617ff
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1 change: 1 addition & 0 deletions patches/chromium/.patches
Expand Up @@ -152,3 +152,4 @@ m122_webcodecs_disable_async_videoframe_readback_to_mitigate_a.patch
fix_paintimage_deserialization_arbitrary-read_issue.patch
reland_sensors_winrt_call_onreadingchangedcallback_via.patch
cherry-pick-1b1f34234346.patch
cherry-pick-0d9350b71fd0.patch
203 changes: 203 additions & 0 deletions patches/chromium/cherry-pick-0d9350b71fd0.patch
@@ -0,0 +1,203 @@
From 0d9350b71fd0bffe5052342850cf591958322924 Mon Sep 17 00:00:00 2001
From: Marja Hölttä <marja@google.com>
Date: Tue, 09 Apr 2024 08:32:27 +0000
Subject: [PATCH] Merge "Fix DOMArrayBuffer::IsDetached()" and "Comment out a CHECK that a DOMAB has maximally one non-detached JSAB"

1)

A DOMArrayBuffer was maintaining its own "is_detached_" state, and
would consider itself non-detached even if the corresponding
JSArrayBuffer (or, all of them, in case there are several) was
detached.

Piping in the v8::Isolate would be a too big change for this fix, so this is using v8::Isolate::GetCurrent() for now.

2)

Comment out a CHECK that a DOMAB has maximally one non-detached JSAB

Based on crash reports, this assumption is not true and has to be
investigated.

Removing this newly introduced CHECK to be able to merge fixes in this
area - we still violate this invariant but the fixes are a step into
the right direction.

Fix in question:
https://chromium-review.googlesource.com/5387887
which also introduced this CHECK.

(cherry picked from commit 04e7550d7aa3bf4ac4e49d7074972d357de139e6)

Change-Id: I6a46721e24c6f04fe8252bc4a5e94caeec3a8b51
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5435035
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/branch-heads/6367@{#667}
Cr-Branched-From: d158c6dc6e3604e6f899041972edf26087a49740-refs/heads/main@{#1274542}
---

diff --git a/third_party/blink/renderer/core/typed_arrays/dom_array_buffer.cc b/third_party/blink/renderer/core/typed_arrays/dom_array_buffer.cc
index 87db88b..c178ce5 100644
--- a/third_party/blink/renderer/core/typed_arrays/dom_array_buffer.cc
+++ b/third_party/blink/renderer/core/typed_arrays/dom_array_buffer.cc
@@ -46,8 +46,19 @@

static void AccumulateArrayBuffersForAllWorlds(
v8::Isolate* isolate,
- DOMArrayBuffer* object,
+ const DOMArrayBuffer* object,
v8::LocalVector<v8::ArrayBuffer>& buffers) {
+ if (!object->has_non_main_world_wrappers() && IsMainThread()) {
+ const DOMWrapperWorld& world = DOMWrapperWorld::MainWorld(isolate);
+ v8::Local<v8::Object> wrapper;
+ if (world.DomDataStore()
+ .Get</*entered_context=*/false>(isolate, object)
+ .ToLocal(&wrapper)) {
+ buffers.push_back(v8::Local<v8::ArrayBuffer>::Cast(wrapper));
+ }
+ return;
+ }
+
HeapVector<Member<DOMWrapperWorld>> worlds;
DOMWrapperWorld::AllWorldsInIsolate(isolate, worlds);
for (const auto& world : worlds) {
@@ -259,6 +270,52 @@
wrapper);
}

+bool DOMArrayBuffer::IsDetached() const {
+ if (contents_.BackingStore() == nullptr) {
+ return is_detached_;
+ }
+ if (is_detached_) {
+ return true;
+ }
+
+ v8::Isolate* isolate = v8::Isolate::GetCurrent();
+ v8::HandleScope handle_scope(isolate);
+ v8::LocalVector<v8::ArrayBuffer> buffer_handles(isolate);
+ AccumulateArrayBuffersForAllWorlds(isolate, this, buffer_handles);
+
+ // There may be several v8::ArrayBuffers corresponding to the DOMArrayBuffer,
+ // but at most one of them may be non-detached.
+ int nondetached_count = 0;
+ int detached_count = 0;
+
+ for (const auto& buffer_handle : buffer_handles) {
+ if (buffer_handle->WasDetached()) {
+ ++detached_count;
+ } else {
+ ++nondetached_count;
+ }
+ }
+
+ // This CHECK fires even though it should not. TODO(330759272): Investigate
+ // under which conditions we end up with multiple non-detached JSABs for the
+ // same DOMAB and potentially restore this check.
+
+ // CHECK_LE(nondetached_count, 1);
+
+ return nondetached_count == 0 && detached_count > 0;
+}
+
+v8::Local<v8::Object> DOMArrayBuffer::AssociateWithWrapper(
+ v8::Isolate* isolate,
+ const WrapperTypeInfo* wrapper_type_info,
+ v8::Local<v8::Object> wrapper) {
+ if (!DOMWrapperWorld::Current(isolate).IsMainWorld()) {
+ has_non_main_world_wrappers_ = true;
+ }
+ return ScriptWrappable::AssociateWithWrapper(isolate, wrapper_type_info,
+ wrapper);
+}
+
DOMArrayBuffer* DOMArrayBuffer::Slice(size_t begin, size_t end) const {
begin = std::min(begin, ByteLength());
end = std::min(end, ByteLength());
diff --git a/third_party/blink/renderer/core/typed_arrays/dom_array_buffer.h b/third_party/blink/renderer/core/typed_arrays/dom_array_buffer.h
index a7d4bac..9d4827f5 100644
--- a/third_party/blink/renderer/core/typed_arrays/dom_array_buffer.h
+++ b/third_party/blink/renderer/core/typed_arrays/dom_array_buffer.h
@@ -91,6 +91,17 @@

void Trace(Visitor*) const override;

+ bool IsDetached() const override;
+
+ v8::Local<v8::Object> AssociateWithWrapper(
+ v8::Isolate* isolate,
+ const WrapperTypeInfo* wrapper_type_info,
+ v8::Local<v8::Object> wrapper) override;
+
+ bool has_non_main_world_wrappers() const {
+ return has_non_main_world_wrappers_;
+ }
+
private:
v8::Maybe<bool> TransferDetachable(v8::Isolate*,
v8::Local<v8::Value> detach_key,
@@ -101,6 +112,8 @@
// support only v8::String as the detach key type. It's also convenient that
// we can write `array_buffer->SetDetachKey(isolate, "my key")`.
TraceWrapperV8Reference<v8::String> detach_key_;
+
+ bool has_non_main_world_wrappers_ = false;
};

} // namespace blink
diff --git a/third_party/blink/renderer/core/typed_arrays/dom_array_buffer_base.h b/third_party/blink/renderer/core/typed_arrays/dom_array_buffer_base.h
index 90c4c70..43618b8 100644
--- a/third_party/blink/renderer/core/typed_arrays/dom_array_buffer_base.h
+++ b/third_party/blink/renderer/core/typed_arrays/dom_array_buffer_base.h
@@ -27,7 +27,9 @@

size_t ByteLength() const { return contents_.DataLength(); }

- bool IsDetached() const { return is_detached_; }
+ // TODO(331348222): It doesn't make sense to detach DomSharedArrayBuffers,
+ // remove that possibility.
+ virtual bool IsDetached() const { return is_detached_; }

void Detach() { is_detached_ = true; }

diff --git a/third_party/blink/renderer/modules/gamepad/BUILD.gn b/third_party/blink/renderer/modules/gamepad/BUILD.gn
index 572d8ce..a871cbd 100644
--- a/third_party/blink/renderer/modules/gamepad/BUILD.gn
+++ b/third_party/blink/renderer/modules/gamepad/BUILD.gn
@@ -55,6 +55,7 @@
"//testing/gtest",
"//third_party/blink/renderer/modules",
"//third_party/blink/renderer/platform",
+ "//third_party/blink/renderer/platform:test_support",
"//third_party/blink/renderer/platform/wtf",
]
}
diff --git a/third_party/blink/renderer/modules/gamepad/gamepad_comparisons_test.cc b/third_party/blink/renderer/modules/gamepad/gamepad_comparisons_test.cc
index e0a7f48..b9f422e 100644
--- a/third_party/blink/renderer/modules/gamepad/gamepad_comparisons_test.cc
+++ b/third_party/blink/renderer/modules/gamepad/gamepad_comparisons_test.cc
@@ -4,9 +4,11 @@

#include "third_party/blink/renderer/modules/gamepad/gamepad_comparisons.h"

+#include "base/test/task_environment.h"
#include "device/gamepad/public/cpp/gamepad.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/renderer/modules/gamepad/gamepad.h"
+#include "third_party/blink/renderer/platform/testing/main_thread_isolate.h"

namespace blink {

@@ -241,6 +243,11 @@
list[0] = gamepad;
return list;
}
+
+ private:
+ // Needed so we can do v8::Isolate::GetCurrent().
+ base::test::TaskEnvironment task_environment_;
+ blink::test::MainThreadIsolate isolate_;
};

TEST_F(GamepadComparisonsTest, EmptyListCausesNoActivation) {

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