Uses isEditable and isRichlyEditable to determine which attributes to expose on Mac and how to repr…

content/browser/accessibility/browser_accessibility.cc

Index: content/browser/accessibility/browser_accessibility.cc
diff --git a/content/browser/accessibility/browser_accessibility.cc b/content/browser/accessibility/browser_accessibility.cc
index 93d84137ecd51970348f9b5e8e9f2419ea449035..150d0f4301f99a4204517ded1dc48e097263dfae 100644
--- a/content/browser/accessibility/browser_accessibility.cc
+++ b/content/browser/accessibility/browser_accessibility.cc
@@ -641,18 +641,7 @@ bool BrowserAccessibility::IsCellOrTableHeaderRole() const {
 }
 
 bool BrowserAccessibility::IsEditableText() const {
-  // These roles don't have readonly set, but they're not editable text.
-  if (GetRole() == ui::AX_ROLE_SCROLL_AREA ||
-      GetRole() == ui::AX_ROLE_COLUMN ||
-      GetRole() == ui::AX_ROLE_TABLE_HEADER_CONTAINER) {
-    return false;
-  }
-
-  // Note: WebAXStateReadonly being false means it's either a text control,
-  // or contenteditable. We also check for the text field role to cover
-  // elements that have role=textbox set on it.
-  return (!HasState(ui::AX_STATE_READ_ONLY) ||
-          GetRole() == ui::AX_ROLE_TEXT_FIELD);
+  return HasState(ui::AX_STATE_EDITABLE);
 }
 
 bool BrowserAccessibility::IsWebAreaForPresentationalIframe() const {