LibJS: Make Cell::initialize() return void

Stop worrying about tiny OOMs.

Work towards #20405

Userland/Libraries/LibWeb/UIEvents/FocusEvent.cpp

@@ -22,12 +22,10 @@ FocusEvent::FocusEvent(JS::Realm& realm, FlyString const& event_name, FocusEvent
 
 FocusEvent::~FocusEvent() = default;
 
-JS::ThrowCompletionOr<void> FocusEvent::initialize(JS::Realm& realm)
+void FocusEvent::initialize(JS::Realm& realm)
 {
-    MUST_OR_THROW_OOM(Base::initialize(realm));
+    Base::initialize(realm);
     set_prototype(&Bindings::ensure_web_prototype<Bindings::FocusEventPrototype>(realm, "FocusEvent"));
-
-    return {};
 }
 
 }

Userland/Libraries/LibWeb/UIEvents/FocusEvent.h

@@ -26,7 +26,7 @@ public:
 private:
     FocusEvent(JS::Realm&, FlyString const& event_name, FocusEventInit const&);
 
-    virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
+    virtual void initialize(JS::Realm&) override;
 };
 
 }

Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.cpp

@@ -570,12 +570,10 @@ KeyboardEvent::KeyboardEvent(JS::Realm& realm, FlyString const& event_name, Keyb
 
 KeyboardEvent::~KeyboardEvent() = default;
 
-JS::ThrowCompletionOr<void> KeyboardEvent::initialize(JS::Realm& realm)
+void KeyboardEvent::initialize(JS::Realm& realm)
 {
-    MUST_OR_THROW_OOM(Base::initialize(realm));
+    Base::initialize(realm);
     set_prototype(&Bindings::ensure_web_prototype<Bindings::KeyboardEventPrototype>(realm, "KeyboardEvent"));
-
-    return {};
 }
 
 }

Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.h

@@ -64,7 +64,7 @@ public:
 private:
     KeyboardEvent(JS::Realm&, FlyString const& event_name, KeyboardEventInit const& event_init);
 
-    virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
+    virtual void initialize(JS::Realm&) override;
 
     String m_key;
     String m_code;

Userland/Libraries/LibWeb/UIEvents/MouseEvent.cpp

@@ -29,12 +29,10 @@ MouseEvent::MouseEvent(JS::Realm& realm, FlyString const& event_name, MouseEvent
 
 MouseEvent::~MouseEvent() = default;
 
-JS::ThrowCompletionOr<void> MouseEvent::initialize(JS::Realm& realm)
+void MouseEvent::initialize(JS::Realm& realm)
 {
-    MUST_OR_THROW_OOM(Base::initialize(realm));
+    Base::initialize(realm);
     set_prototype(&Bindings::ensure_web_prototype<Bindings::MouseEventPrototype>(realm, "MouseEvent"));
-
-    return {};
 }
 
 // https://www.w3.org/TR/uievents/#dom-mouseevent-button

Userland/Libraries/LibWeb/UIEvents/MouseEvent.h

@@ -58,7 +58,7 @@ public:
 protected:
     MouseEvent(JS::Realm&, FlyString const& event_name, MouseEventInit const& event_init);
 
-    virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
+    virtual void initialize(JS::Realm&) override;
 
 private:
     void set_event_characteristics();

Userland/Libraries/LibWeb/UIEvents/UIEvent.cpp

@@ -33,12 +33,10 @@ UIEvent::UIEvent(JS::Realm& realm, FlyString const& event_name, UIEventInit cons
 
 UIEvent::~UIEvent() = default;
 
-JS::ThrowCompletionOr<void> UIEvent::initialize(JS::Realm& realm)
+void UIEvent::initialize(JS::Realm& realm)
 {
-    MUST_OR_THROW_OOM(Base::initialize(realm));
+    Base::initialize(realm);
     set_prototype(&Bindings::ensure_web_prototype<Bindings::UIEventPrototype>(realm, "UIEvent"));
-
-    return {};
 }
 
 void UIEvent::visit_edges(Cell::Visitor& visitor)

Userland/Libraries/LibWeb/UIEvents/UIEvent.h

@@ -41,7 +41,7 @@ protected:
     UIEvent(JS::Realm&, FlyString const& event_name);
     UIEvent(JS::Realm&, FlyString const& event_name, UIEventInit const& event_init);
 
-    virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
+    virtual void initialize(JS::Realm&) override;
     virtual void visit_edges(Cell::Visitor&) override;
 
     JS::GCPtr<HTML::Window> m_view;

Userland/Libraries/LibWeb/UIEvents/WheelEvent.cpp

@@ -23,12 +23,10 @@ WheelEvent::WheelEvent(JS::Realm& realm, FlyString const& event_name, WheelEvent
 
 WheelEvent::~WheelEvent() = default;
 
-JS::ThrowCompletionOr<void> WheelEvent::initialize(JS::Realm& realm)
+void WheelEvent::initialize(JS::Realm& realm)
 {
-    MUST_OR_THROW_OOM(Base::initialize(realm));
+    Base::initialize(realm);
     set_prototype(&Bindings::ensure_web_prototype<Bindings::WheelEventPrototype>(realm, "WheelEvent"));
-
-    return {};
 }
 
 WebIDL::ExceptionOr<JS::NonnullGCPtr<WheelEvent>> WheelEvent::create(JS::Realm& realm, FlyString const& event_name, WheelEventInit const& event_init)

Userland/Libraries/LibWeb/UIEvents/WheelEvent.h

@@ -42,7 +42,7 @@ public:
 private:
     WheelEvent(JS::Realm&, FlyString const& event_name, WheelEventInit const& event_init);
 
-    virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
+    virtual void initialize(JS::Realm&) override;
 
     void set_event_characteristics();