RWHI should implement BrowserAccessibilityDelegate

content/browser/accessibility/browser_accessibility_mac.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.
 
 #import <Cocoa/Cocoa.h>
 
 #import "content/browser/accessibility/browser_accessibility_mac.h"
 
 #import "content/browser/accessibility/browser_accessibility_cocoa.h"
-#import "content/browser/accessibility/browser_accessibility_delegate_mac.h"
 #include "content/browser/accessibility/browser_accessibility_manager_mac.h"
 
 namespace content {
 
 // Static.
 BrowserAccessibility* BrowserAccessibility::Create() {
   return new BrowserAccessibilityMac();
 }
 
 BrowserAccessibilityMac::BrowserAccessibilityMac()
     : browser_accessibility_cocoa_(NULL) {
 }
 
 void BrowserAccessibilityMac::OnDataChanged() {
   BrowserAccessibility::OnDataChanged();
 
   if (browser_accessibility_cocoa_) {
     [browser_accessibility_cocoa_ childrenChanged];
     return;
   }
 
   // We take ownership of the cocoa obj here.
-  BrowserAccessibilityManagerMac* manager =
-      static_cast<BrowserAccessibilityManagerMac*>(manager_);
   browser_accessibility_cocoa_ = [[BrowserAccessibilityCocoa alloc]
-      initWithObject:this
-      delegate:
-          (id<BrowserAccessibilityDelegateCocoa>)manager->parent_view()];
+      initWithObject:this];
 }
 
 void BrowserAccessibilityMac::NativeReleaseReference() {
   // Detach this object from |browser_accessibility_cocoa_| so it
   // no longer has a pointer to this object.
   [browser_accessibility_cocoa_ detach];
   // Now, release it - but at this point, other processes may have a
   // reference to the cocoa object.
   [browser_accessibility_cocoa_ release];
   // Finally, it's safe to delete this since we've detached.
   delete this;
 }
 
 bool BrowserAccessibilityMac::IsNative() const {
   return true;
 }
 
 BrowserAccessibilityCocoa* BrowserAccessibility::ToBrowserAccessibilityCocoa() {
   return static_cast<BrowserAccessibilityMac*>(this)->
       native_view();
 }
 
 }  // namespace content