Calls BrowserAccessibility::IsCellOrTableHeaderRole() with a correct instance.

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 228fb6307f9d7aad9cc20e30f17abbe85a1ba6bd..36abcb695bf074cc16256fdb03a352a39e29a47e 100644
--- a/content/browser/accessibility/browser_accessibility_win.cc
+++ b/content/browser/accessibility/browser_accessibility_win.cc
@@ -2945,7 +2945,7 @@ HRESULT WINAPI BrowserAccessibilityWin::InternalQueryInterface(
       return E_NOINTERFACE;
     }
   } else if (iid == IID_IAccessibleTableCell) {
-    if (!accessibility->IsCellOrTableHeaderRole()) {
+    if (!accessibility->IsCellOrTableHeaderRole(accessibility->GetRole())) {
       *object = NULL;
       return E_NOINTERFACE;
     }
@@ -3033,7 +3033,7 @@ void BrowserAccessibilityWin::UpdateStep1ComputeWinAttributes() {
                      "container-busy");
 
   // Expose table cell index.
-  if (IsCellOrTableHeaderRole()) {
+  if (IsCellOrTableHeaderRole(GetRole())) {
     BrowserAccessibility* table = GetParent();
     while (table && table->GetRole() != ui::AX_ROLE_TABLE)
       table = table->GetParent();