Implement accessibility support for CSS-transformed iframes.

ui/accessibility/ax_node_data.cc

 // Copyright 2013 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.
 
 #include "ui/accessibility/ax_node_data.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <set>
@@ skipping 291 matching lines @@
   if (state & (1 << AX_STATE_VERTICAL))
     result += " VERTICAL";
   if (state & (1 << AX_STATE_VISITED))
     result += " VISITED";
 
   result += " (" + IntToString(location.x()) + ", " +
                    IntToString(location.y()) + ")-(" +
                    IntToString(location.width()) + ", " +
                    IntToString(location.height()) + ")";
 
+  if (!transform.IsIdentity())
+    result += " transform=" + transform.ToString();
+
   for (size_t i = 0; i < int_attributes.size(); ++i) {
     std::string value = IntToString(int_attributes[i].second);
     switch (int_attributes[i].first) {
       case AX_ATTR_SCROLL_X:
         result += " scroll_x=" + value;
         break;
       case AX_ATTR_SCROLL_X_MIN:
         result += " scroll_x_min=" + value;
         break;
       case AX_ATTR_SCROLL_X_MAX:
@@ skipping 317 matching lines @@
 bool AXNodeData::IsRoot() const {
   return (role == AX_ROLE_ROOT_WEB_AREA ||
           role == AX_ROLE_DESKTOP);
 }
 
 void AXNodeData::SetRoot() {
   role = AX_ROLE_ROOT_WEB_AREA;
 }
 
 }  // namespace ui