Bug 1703600 part 2: Add GetMarkupMapInfoForNode and use it wherever we aren't explicitly dealing with a specific type of element. r=eeejay

For now, this just uses mHTMlMarkupMap, but it might choose the MathML map in future.
In some places, we're already inside a block which explicitly checks IsHTMlElement.
In those cases, we still use mHTMlMarkupMap directly, since using GetMarkupMapInfoForNode would redundantly check the element type.

Differential Revision: https://phabricator.services.mozilla.com/D111362

accessible/base/nsAccessibilityService.cpp

@@ -887,8 +887,7 @@ LocalAccessible* nsAccessibilityService::CreateAccessible(
     // display:contents element doesn't have a frame, but retains the semantics.
     // All its children are unaffected.
     if (nsCoreUtils::IsDisplayContents(content)) {
-      const MarkupMapInfo* markupMap =
-          mHTMLMarkupMap.Get(content->NodeInfo()->NameAtom());
+      const MarkupMapInfo* markupMap = GetMarkupMapInfoForNode(content);
       if (markupMap && markupMap->new_func) {
         RefPtr<LocalAccessible> newAcc =
             markupMap->new_func(content->AsElement(), aContext);
@@ -1445,7 +1444,7 @@ nsAccessibilityService::CreateAccessibleByFrameType(nsIFrame* aFrame,
 void nsAccessibilityService::MarkupAttributes(
     const nsIContent* aContent, nsIPersistentProperties* aAttributes) const {
   const mozilla::a11y::MarkupMapInfo* markupMap =
-      mHTMLMarkupMap.Get(aContent->NodeInfo()->NameAtom());
+      GetMarkupMapInfoForNode(aContent);
   if (!markupMap) return;
 
   for (uint32_t i = 0; i < ArrayLength(markupMap->attrs); i++) {

accessible/base/nsAccessibilityService.h

@@ -256,7 +256,7 @@ class nsAccessibilityService final : public mozilla::a11y::DocManager,
 
   mozilla::a11y::role MarkupRole(const nsIContent* aContent) const {
     const mozilla::a11y::MarkupMapInfo* markupMap =
-        mHTMLMarkupMap.Get(aContent->NodeInfo()->NameAtom());
+        GetMarkupMapInfoForNode(aContent);
     return markupMap ? markupMap->role : mozilla::a11y::roles::NOTHING;
   }
 
@@ -267,7 +267,7 @@ class nsAccessibilityService final : public mozilla::a11y::DocManager,
   nsStaticAtom* MarkupAttribute(const nsIContent* aContent,
                                 nsStaticAtom* aAtom) const {
     const mozilla::a11y::MarkupMapInfo* markupMap =
-        mHTMLMarkupMap.Get(aContent->NodeInfo()->NameAtom());
+        GetMarkupMapInfoForNode(aContent);
     if (markupMap) {
       for (size_t i = 0; i < mozilla::ArrayLength(markupMap->attrs); i++) {
         const mozilla::a11y::MarkupAttrInfo* info = markupMap->attrs + i;
@@ -363,8 +363,15 @@ class nsAccessibilityService final : public mozilla::a11y::DocManager,
    */
   static uint32_t gConsumers;
 
-  nsTHashMap<nsPtrHashKey<const nsAtom>, const mozilla::a11y::MarkupMapInfo*>
-      mHTMLMarkupMap;
+  using MarkupMap = nsTHashMap<nsPtrHashKey<const nsAtom>,
+                               const mozilla::a11y::MarkupMapInfo*>;
+  MarkupMap mHTMLMarkupMap;
+
+  const mozilla::a11y::MarkupMapInfo* GetMarkupMapInfoForNode(
+      const nsIContent* aContent) const {
+    return mHTMLMarkupMap.Get(aContent->NodeInfo()->NameAtom());
+  }
+
 #ifdef MOZ_XUL
   nsTHashMap<nsPtrHashKey<const nsAtom>, const mozilla::a11y::XULMarkupMapInfo*>
       mXULMarkupMap;