Auto merge of #26926 - MDeiml:referrer-26570, r=jdm

Make url for "client" referrer mandatory

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I added a url attribute to `Referrer::Client` so that the referrer header can be set accordingly when fetching.

`Referrer::Client` has to be kept separate from `Referrer::ReferrerUrl` as they differ in this method
6b0d9afd6f/components/script/dom/request.rs (L566-L576)

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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #26570 (GitHub issue number if applicable)

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- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because ___

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components/script/dom/servoparser/prefetch.rs

@@ -52,7 +52,7 @@ impl Tokenizer {
             pipeline_id: document.global().pipeline_id(),
             base_url: None,
             document_url: document.url(),
-            referrer: Referrer::ReferrerUrl(document.url()),
+            referrer: document.global().get_referrer(),
             referrer_policy: document.get_referrer_policy(),
             resource_threads: document.loader().resource_threads().clone(),
             // Initially we set prefetching to false, and only set it
@@ -126,6 +126,7 @@ impl TokenSink for PrefetchSink {
                     let request = image_fetch_request(
                         url,
                         self.origin.clone(),
+                        self.referrer.clone(),
                         self.pipeline_id,
                         self.get_cors_settings(tag, local_name!("crossorigin")),
                         self.get_referrer_policy(tag, local_name!("referrerpolicy")),