Handling of different types of empty alt

content/browser/accessibility/browser_accessibility_win.cc

Index: content/browser/accessibility/browser_accessibility_win.cc
diff --git a/content/browser/accessibility/browser_accessibility_win.cc b/content/browser/accessibility/browser_accessibility_win.cc
index 162f191772fc133384ef8cfaf581aaa7d4b27aa1..77cf1a774f51c12f84232160f0541fdb7c6cc039 100644
--- a/content/browser/accessibility/browser_accessibility_win.cc
+++ b/content/browser/accessibility/browser_accessibility_win.cc
@@ -676,7 +676,10 @@ STDMETHODIMP BrowserAccessibilityWin::get_accName(VARIANT var_id, BSTR* name) {
       // nonempty string for this role.  https://crbug.com/583057
       name_str = L" ";
     } else {
-      return S_FALSE;
+      // For no accessible name, we return S_FALSE
+      // Explicitly empty names like <img alt=""> will return return ""/S_OK
+      if (!target->HasExplicitlyEmptyName())
+        return S_FALSE;
     }
   }