Auto merge of #15016 - prampey:doc-deactivate, r=cbrewster

Documents now fully deactivate when a freeze message is sent

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Documents now fully deactivate when a freeze message is sent

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #14906  (github issue number if applicable).

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- [ ] There are tests for these changes OR
- [X] These changes do not require tests because minimal changes.

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components/script/script_thread.rs

@@ -1354,9 +1354,10 @@ impl ScriptThread {
 
     /// Handles freeze message
     fn handle_freeze_msg(&self, id: PipelineId) {
-        let window = self.documents.borrow().find_window(id);
-        if let Some(window) = window {
-            window.freeze();
+        let document = self.documents.borrow().find_document(id);
+        if let Some(document) = document {
+            document.window().freeze();
+            document.fully_deactivate();
             return;
         }
         let mut loads = self.incomplete_loads.borrow_mut();