Implement accessibility support for CSS-transformed iframes.

ui/accessibility/ax_tree_data.h

 // Copyright 2015 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_ACCESSIBILITY_AX_TREE_DATA_H_
 #define UI_ACCESSIBILITY_AX_TREE_DATA_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/strings/string16.h"
 #include "base/strings/string_split.h"
 #include "ui/accessibility/ax_enums.h"
 #include "ui/accessibility/ax_export.h"
 #include "ui/gfx/geometry/rect.h"
+#include "ui/gfx/transform.h"
 
 namespace ui {
 
 // The data associated with an accessibility tree that's global to the
 // tree and not associated with any particular node in the tree.
 struct AX_EXPORT AXTreeData {
   AXTreeData();
   virtual ~AXTreeData();
 
   // Return a string representation of this data, for debugging.
@@ skipping 28 matching lines @@
   int32_t sel_focus_object_id;
   int32_t sel_focus_offset;
 };
 
 AX_EXPORT bool operator==(const AXTreeData& lhs, const AXTreeData& rhs);
 AX_EXPORT bool operator!=(const AXTreeData& lhs, const AXTreeData& rhs);
 
 }  // namespace ui
 
 #endif  // UI_ACCESSIBILITY_AX_TREE_DATA_H_