Implement accessibility support for CSS-transformed iframes.

content/browser/accessibility/browser_accessibility_manager.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 CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 61 matching lines @@
   virtual void AccessibilitySetSelection(int anchor_obj_id,
                                          int anchor_offset,
                                          int focus_obj_id,
                                          int focus_offset) = 0;
   virtual void AccessibilitySetValue(
       int acc_obj_id, const base::string16& value) = 0;
   virtual bool AccessibilityViewHasFocus() const = 0;
   virtual gfx::Rect AccessibilityGetViewBounds() const = 0;
   virtual gfx::Point AccessibilityOriginInScreen(
       const gfx::Rect& bounds) const = 0;
+  virtual void AccessibilityTransformToRootCoordSpace(gfx::Rect* bounds) = 0;
   virtual void AccessibilityHitTest(
       const gfx::Point& point) = 0;
   virtual void AccessibilitySetAccessibilityFocus(int acc_obj_id) = 0;
   virtual void AccessibilityFatalError() = 0;
   virtual gfx::AcceleratedWidget AccessibilityGetAcceleratedWidget() = 0;
   virtual gfx::NativeViewAccessible AccessibilityGetNativeViewAccessible() = 0;
 };
 
 class CONTENT_EXPORT BrowserAccessibilityFactory {
  public:
@@ skipping 294 matching lines @@
   // node within that parent tree. It's computed as needed and cached for
   // speed so that it can be accessed quickly if it hasn't changed.
   int parent_node_id_from_parent_tree_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_H_