Auto merge of #28248 - delosrogers:issue-#28243, r=emilio

Use swap() instead of load()/store() in get_and_reset_text_shaping_performance_counter()

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Replaced usage of `.load()` then `.store()` with `.swap()` to prevent possible atomicity issues.

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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 #28245

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- [ ] There are tests for these changes OR
- [X] These changes do not require tests because: They do not change function of the code.

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components/gfx/font.rs

@@ -522,8 +522,7 @@ impl RunMetrics {
 }
 
 pub fn get_and_reset_text_shaping_performance_counter() -> usize {
-    let value = TEXT_SHAPING_PERFORMANCE_COUNTER.load(Ordering::SeqCst);
-    TEXT_SHAPING_PERFORMANCE_COUNTER.store(0, Ordering::SeqCst);
+    let value = TEXT_SHAPING_PERFORMANCE_COUNTER.swap(0, Ordering::SeqCst);
     value
 }