Auto merge of #16096 - stshine:die-modify-style-die, r=emilio

Use Servo-specific pseudo elements for anonymous box and text

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Use some fake pseudo elements to style servo-specific boxes in servo. Also, Since for nested inline elements non-inheritable properties are properly stored in the inline context of an inline fragment, so get
rid of them on the style using empty pseudo to do cascading.

---
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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 #5625 (github issue number if applicable).

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

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components/style/stylist.rs

@@ -385,20 +385,23 @@ impl Stylist {
 
     /// Returns the style for an anonymous box of the given type.
     #[cfg(feature = "servo")]
-    pub fn style_for_anonymous_box(&self,
-                                   guards: &StylesheetGuards,
-                                   pseudo: &PseudoElement,
-                                   parent_style: &Arc<ComputedValues>)
-                                   -> Arc<ComputedValues> {
+    pub fn style_for_anonymous(&self,
+                               guards: &StylesheetGuards,
+                               pseudo: &PseudoElement,
+                               parent_style: &Arc<ComputedValues>)
+                               -> Arc<ComputedValues> {
         // For most (but not all) pseudo-elements, we inherit all values from the parent.
         let inherit_all = match *pseudo {
+            PseudoElement::ServoText |
             PseudoElement::ServoInputText => false,
             PseudoElement::ServoAnonymousBlock |
             PseudoElement::ServoAnonymousTable |
             PseudoElement::ServoAnonymousTableCell |
             PseudoElement::ServoAnonymousTableRow |
             PseudoElement::ServoAnonymousTableWrapper |
-            PseudoElement::ServoTableWrapper => true,
+            PseudoElement::ServoTableWrapper |
+            PseudoElement::ServoInlineBlockWrapper |
+            PseudoElement::ServoInlineAbsolute => true,
             PseudoElement::Before |
             PseudoElement::After |
             PseudoElement::Selection |