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

content/browser/accessibility/browser_accessibility_cocoa.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <execinfo.h>
 
 #import "content/browser/accessibility/browser_accessibility_cocoa.h"
 
 #include <map>
 
@@ skipping 1128 matching lines @@
         continue;
       }
       if (rowIndex < row)
         continue;
       if (rowIndex > row)
         break;
       for (size_t j = 0;
            j < child->PlatformChildCount();
            ++j) {
         BrowserAccessibility* cell = child->PlatformGetChild(j);
-        if (!browserAccessibility_->IsCellOrTableHeaderRole())
+        if (!cell->IsCellOrTableHeaderRole())
           continue;
         int colIndex;
         if (!cell->GetIntAttribute(
                 ui::AX_ATTR_TABLE_CELL_COLUMN_INDEX,
                 &colIndex)) {
           continue;
         }
         if (colIndex == column)
           return cell->ToBrowserAccessibilityCocoa();
         if (colIndex > column)
@@ skipping 458 matching lines @@
   if (!browserAccessibility_)
     return [super hash];
   return browserAccessibility_->GetId();
 }
 
 - (BOOL)accessibilityShouldUseUniqueId {
   return YES;
 }
 
 @end