Backed out changeset dbd300f4d75b for build bustage. r=backout on a CLOSED TREE

Backs out https://github.com/servo/servo/pull/19108

components/style/gecko/wrapper.rs

@@ -110,26 +110,6 @@ impl<'ld> TDocument for GeckoDocument<'ld> {
     fn quirks_mode(&self) -> QuirksMode {
         self.0.mCompatMode.into()
     }
-
-    fn elements_with_id(&self, id: &Atom) -> Result<&[GeckoElement<'ld>], ()> {
-        unsafe {
-            let array = bindings::Gecko_GetElementsWithId(self.0, id.as_ptr());
-            if array.is_null() {
-                return Ok(&[]);
-            }
-
-            let elements: &[*mut RawGeckoElement] = &**array;
-
-            // NOTE(emilio): We rely on the in-memory representation of
-            // GeckoElement<'ld> and *mut RawGeckoElement being the same.
-            #[allow(dead_code)]
-            unsafe fn static_assert() {
-                mem::transmute::<*mut RawGeckoElement, GeckoElement<'static>>(0xbadc0de as *mut _);
-            }
-
-            Ok(mem::transmute(elements))
-        }
-    }
 }
 
 /// A simple wrapper over a non-null Gecko node (`nsINode`) pointer.
@@ -262,7 +242,6 @@ impl<'ln> TNode for GeckoNode<'ln> {
     type ConcreteDocument = GeckoDocument<'ln>;
     type ConcreteElement = GeckoElement<'ln>;
 
-    #[inline]
     fn parent_node(&self) -> Option<Self> {
         unsafe { self.0.mParent.as_ref().map(GeckoNode) }
     }
@@ -293,11 +272,6 @@ impl<'ln> TNode for GeckoNode<'ln> {
         GeckoDocument(unsafe { &*self.node_info().mDocument })
     }
 
-    #[inline]
-    fn is_in_document(&self) -> bool {
-        self.get_bool_flag(nsINode_BooleanFlag::IsInDocument)
-    }
-
     fn traversal_parent(&self) -> Option<GeckoElement<'ln>> {
         self.flattened_tree_parent().and_then(|n| n.as_element())
     }
@@ -1768,12 +1742,10 @@ impl<'le> Hash for GeckoElement<'le> {
 impl<'le> ::selectors::Element for GeckoElement<'le> {
     type Impl = SelectorImpl;
 
-    #[inline]
     fn opaque(&self) -> OpaqueElement {
         OpaqueElement::new(self.0)
     }
 
-    #[inline]
     fn parent_element(&self) -> Option<Self> {
         // FIXME(emilio): This will need to jump across if the parent node is a
         // shadow root to get the shadow host.
@@ -1786,7 +1758,6 @@ impl<'le> ::selectors::Element for GeckoElement<'le> {
         self.closest_non_native_anonymous_ancestor()
     }
 
-    #[inline]
     fn first_child_element(&self) -> Option<Self> {
         let mut child = self.as_node().first_child();
         while let Some(child_node) = child {
@@ -1798,7 +1769,6 @@ impl<'le> ::selectors::Element for GeckoElement<'le> {
         None
     }
 
-    #[inline]
     fn last_child_element(&self) -> Option<Self> {
         let mut child = self.as_node().last_child();
         while let Some(child_node) = child {
@@ -1810,7 +1780,6 @@ impl<'le> ::selectors::Element for GeckoElement<'le> {
         None
     }
 
-    #[inline]
     fn prev_sibling_element(&self) -> Option<Self> {
         let mut sibling = self.as_node().prev_sibling();
         while let Some(sibling_node) = sibling {
@@ -1822,7 +1791,6 @@ impl<'le> ::selectors::Element for GeckoElement<'le> {
         None
     }
 
-    #[inline]
     fn next_sibling_element(&self) -> Option<Self> {
         let mut sibling = self.as_node().next_sibling();
         while let Some(sibling_node) = sibling {
@@ -1914,14 +1882,12 @@ impl<'le> ::selectors::Element for GeckoElement<'le> {
         })
     }
 
-    #[inline]
     fn get_local_name(&self) -> &WeakAtom {
         unsafe {
             WeakAtom::new(self.as_node().node_info().mInner.mName)
         }
     }
 
-    #[inline]
     fn get_namespace(&self) -> &WeakNamespace {
         unsafe {
             WeakNamespace::new(Gecko_Namespace(self.0))
@@ -2088,7 +2054,6 @@ impl<'le> ::selectors::Element for GeckoElement<'le> {
         self.get_state().intersects(NonTSPseudoClass::AnyLink.state_flag())
     }
 
-    #[inline]
     fn has_id(&self, id: &Atom, case_sensitivity: CaseSensitivity) -> bool {
         if !self.has_id() {
             return false
@@ -2105,7 +2070,6 @@ impl<'le> ::selectors::Element for GeckoElement<'le> {
         }
     }
 
-    #[inline]
     fn has_class(&self, name: &Atom, case_sensitivity: CaseSensitivity) -> bool {
         if !self.may_have_class() {
             return false;
@@ -2117,18 +2081,15 @@ impl<'le> ::selectors::Element for GeckoElement<'le> {
                                     Gecko_ClassOrClassList)
     }
 
-    #[inline]
     fn is_html_element_in_html_document(&self) -> bool {
         self.is_html_element() &&
         self.as_node().owner_doc().is_html_document()
     }
 
-    #[inline]
     fn ignores_nth_child_selectors(&self) -> bool {
         self.is_root_of_anonymous_subtree()
     }
 
-    #[inline]
     fn blocks_ancestor_combinators(&self) -> bool {
         if !self.is_root_of_anonymous_subtree() {
             return false