Fix IAccessible2 interface in views accessibility.

ui/views/accessibility/native_view_accessibility_win.h

 // 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.
 
 #ifndef UI_VIEWS_ACCESSIBILITY_NATIVE_VIEW_ACCESSIBILITY_WIN_H_
 #define UI_VIEWS_ACCESSIBILITY_NATIVE_VIEW_ACCESSIBILITY_WIN_H_
 
 #include <atlbase.h>
 #include <atlcom.h>
 #include <oleacc.h>
@@ skipping 32 matching lines @@
                            &LIBID_IAccessible2Lib>,
     public IAccessibleText,
     public IServiceProvider,
     public IAccessibleEx,
     public IRawElementProviderSimple,
     public NativeViewAccessibility {
  public:
   BEGIN_COM_MAP(NativeViewAccessibilityWin)
     COM_INTERFACE_ENTRY2(IDispatch, IAccessible2_2)
     COM_INTERFACE_ENTRY2(IAccessible, IAccessible2_2)
+    COM_INTERFACE_ENTRY2(IAccessible2, IAccessible2_2)

[David Tseng, 2014/06/18 22:58:21]

Just curious, why are you using the *2 variant of the macro?

Docs say...
"Use this macro to disambiguate two branches of inheritance."

What other super classes implement IAccessible*?

     COM_INTERFACE_ENTRY(IAccessible2_2)
     COM_INTERFACE_ENTRY(IAccessibleText)
     COM_INTERFACE_ENTRY(IServiceProvider)
     COM_INTERFACE_ENTRY(IAccessibleEx)
     COM_INTERFACE_ENTRY(IRawElementProviderSimple)
   END_COM_MAP()
 
   virtual ~NativeViewAccessibilityWin();
 
   // NativeViewAccessibility.
@@ skipping 378 matching lines @@
   // an alert event, in order to provide an api to quickly identify all
   // open alerts.
   static std::vector<int> alert_target_view_storage_ids_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeViewAccessibilityWin);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_ACCESSIBILITY_NATIVE_VIEW_ACCESSIBILITY_WIN_H_