Extend AXTreeSourceViews to handle aura::Window and views::Widget.

ui/views/accessibility/ax_node_source_obj_wrapper.h

Index: ui/views/accessibility/ax_node_source_obj_wrapper.h
diff --git a/ui/views/accessibility/ax_node_source_obj_wrapper.h b/ui/views/accessibility/ax_node_source_obj_wrapper.h
new file mode 100644
index 0000000000000000000000000000000000000000..4aed726d6b9f9563d4fc8d1bd4aa664bd0e00fe2
--- /dev/null
+++ b/ui/views/accessibility/ax_node_source_obj_wrapper.h
@@ -0,0 +1,34 @@
+// Copyright 2014 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_AX_NODE_SOURCE_OBJ_WRAPPER_H_
+#define UI_VIEWS_ACCESSIBILITY_AX_NODE_SOURCE_OBJ_WRAPPER_H_
+
+#include <vector>
+
+#include "base/compiler_specific.h"
+#include "base/macros.h"
+
+namespace ui {
+struct AXNodeData;
+}  // namespace ui
+
+namespace views {
+
+class AXNodeSourceObjWrapper {

[dmazzoni, 2014/04/23 05:06:44]

Thinking about this some more, how about AXAuraObjWrapper?

Aura is a reasonable name to use that encompasses Windows, Widgets, and Views.
They're all Aura objects.

Putting NodeSource in the class name doesn't help, since this class doesn't
inherit from or use AXNodeSource, it's just meant to be used with it. But it
stands alone fine, and I could imagine writing tests for AXAuraObjWrapper that
don't involve AXNodeSource.

[David Tseng, 2014/04/23 18:20:01]

Well, AXNodeSource isn't an actual class, otherwise this would probably inherit
from it.

I think Aura in the name does make sense now that of the four platforms with
extension support, only one isn't using Aura (Mac).

+ public:
+  virtual ~AXNodeSourceObjWrapper() {}
+
+  virtual AXNodeSourceObjWrapper* GetParent() = 0;
+  virtual void GetChildren(
+      std::vector<AXNodeSourceObjWrapper*>* out_children) = 0;
+  virtual void Serialize(ui::AXNodeData* out_node_data) = 0;
+
+ protected:
+  AXNodeSourceObjWrapper() {}
+};
+
+}  // namespace views
+
+#endif  // UI_VIEWS_ACCESSIBILITY_AX_NODE_SOURCE_OBJ_WRAPPER_H_