LibWeb: Remove exceptional return types from infallible stream IDL

Author: https://github.com/trflynn89
Commit: 2d4d16ac37
Pull-request: https://github.com/SerenityOS/serenity/pull/24165
Reviewed-by: https://github.com/kennethmyhra ✅
Reviewed-by: https://github.com/shannonbooth ✅

Userland/Libraries/LibWeb/Streams/CountQueuingStrategy.cpp

@@ -9,14 +9,13 @@
 #include <LibWeb/Bindings/Intrinsics.h>
 #include <LibWeb/HTML/Window.h>
 #include <LibWeb/Streams/CountQueuingStrategy.h>
-#include <LibWeb/WebIDL/ExceptionOr.h>
 
 namespace Web::Streams {
 
 JS_DEFINE_ALLOCATOR(CountQueuingStrategy);
 
 // https://streams.spec.whatwg.org/#blqs-constructor
-WebIDL::ExceptionOr<JS::NonnullGCPtr<CountQueuingStrategy>> CountQueuingStrategy::construct_impl(JS::Realm& realm, QueuingStrategyInit const& init)
+JS::NonnullGCPtr<CountQueuingStrategy> CountQueuingStrategy::construct_impl(JS::Realm& realm, QueuingStrategyInit const& init)
 {
     // The new CountQueuingStrategy(init) constructor steps are:
     // 1. Set this.[[highWaterMark]] to init["highWaterMark"].
@@ -32,7 +31,7 @@ CountQueuingStrategy::CountQueuingStrategy(JS::Realm& realm, double high_water_m
 CountQueuingStrategy::~CountQueuingStrategy() = default;
 
 // https://streams.spec.whatwg.org/#cqs-size
-WebIDL::ExceptionOr<JS::NonnullGCPtr<WebIDL::CallbackType>> CountQueuingStrategy::size()
+JS::NonnullGCPtr<WebIDL::CallbackType> CountQueuingStrategy::size()
 {
     // 1. Return this's relevant global object's count queuing strategy size function.
     return global_object().count_queuing_strategy_size_function();