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refactor: reduce & remove no-op MicrotasksScope calls (#46681)

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* fix: do not run microtasks in V8Serializer in browser process

* Remove no-op MicrotasksScope in `shell/browser/api/electron_api_auto_updater.cc`

This call was added in https://github.com/electron/electron/pull/40576 as an expansion of `gin_helper::EmitEvent`.

Since this only runs in the browser process and `bool ignore_browser_checkpoint = true` this code is a no-op.

Node should perform a microtask checkpoint if necessary in `node::MakeCallback`.

* Remove no-op MicrotasksScope in `shell/common/api/electron_bindings.cc`

This method is only called by the browser process. The containing function, `ElectronBindings::DidReceiveMemoryDump`, is only used in two places:

* `ElectronBindings::GetProcessMemoryInfo` in the same file, which has a `CHECK` that it's running in the browser process at the top.
* From `shell/browser/api/electron_api_web_contents.cc`, which is only run in the browser process.

Added a DCHECK for clarity and validation.

* Replace `gin_helper::MicrotasksScope` with `v8::MicrotasksScope` in `shell/renderer/`

The browser check is unnecessary in the renderer. Since `gin_helper::MicrotasksScope` will always act exactly like `v8::MicrotasksScope`, it's clear to just use the v8 object directly. This also brings them in line with the many other uses of `v8::MicrotasksScope` in `shell/renderer/`.
This commit is contained in:
Calvin 2025-04-19 11:18:03 -06:00 • committed by GitHub
parent 297c4297b1
commit f15fa56e38
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4 changed files with 7 additions and 12 deletions
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4
shell/renderer/api/electron_api_spell_check_client.cc
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@ -215,8 +215,8 @@ void SpellCheckClient::SpellCheckWords(const SpellCheckScope& scope,
DCHECK(!scope.spell_check_.IsEmpty());
auto context = isolate_->GetCurrentContext();
gin_helper::MicrotasksScope microtasks_scope{
context, false, v8::MicrotasksScope::kDoNotRunMicrotasks};
v8::MicrotasksScope microtasks_scope(
context, v8::MicrotasksScope::kDoNotRunMicrotasks);
v8::Local<v8::FunctionTemplate> templ = gin_helper::CreateFunctionTemplate(
isolate_, base::BindRepeating(&SpellCheckClient::OnSpellCheckDone,