NOT FOR REVIEW. ax tree focus with debugging

content/renderer/accessibility/blink_ax_tree_source.cc

 // 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.
 
 #include "content/renderer/accessibility/blink_ax_tree_source.h"
 
 #include <stddef.h>
 
 #include <set>
 
@@ skipping 127 matching lines @@
   blink::WebDocument document = BlinkAXTreeSource::GetMainDocument();
   const blink::WebAXObject& root = GetRoot();
 
   tree_data.title = document.title().utf8();
   tree_data.url = document.url().string().utf8();
   tree_data.mimetype = document.isXHTMLDocument() ? "text/xhtml" : "text/html";
   tree_data.loaded = root.isLoaded();
   tree_data.loading_progress = root.estimatedLoadingProgress();
   tree_data.doctype = "html";
 
+  WebAXObject focus = document.focusedAccessibilityObject();
+  if (!focus.isNull())
+    tree_data.focus_id = focus.axID();
+
   WebAXObject anchor_object, focus_object;
   int anchor_offset, focus_offset;
   root.selection(anchor_object, anchor_offset, focus_object, focus_offset);
   if (!anchor_object.isNull() && !focus_object.isNull() &&
       anchor_offset >= 0 && focus_offset >= 0) {
     int32_t anchor_id = anchor_object.axID();
     int32_t focus_id = focus_object.axID();
     tree_data.sel_anchor_object_id = anchor_id;
     tree_data.sel_anchor_offset = anchor_offset;
     tree_data.sel_focus_object_id = focus_id;
@@ skipping 237 matching lines @@
     dst->AddIntAttribute(ui::AX_ATTR_HIERARCHICAL_LEVEL,
                          src.hierarchicalLevel());
   }
 
   if (src.setSize())
     dst->AddIntAttribute(ui::AX_ATTR_SET_SIZE, src.setSize());
 
   if (src.posInSet())
     dst->AddIntAttribute(ui::AX_ATTR_POS_IN_SET, src.posInSet());
 
-  // Treat the active list box item as focused.
-  if (dst->role == ui::AX_ROLE_LIST_BOX_OPTION &&
-      src.isSelectedOptionActive()) {
-    dst->state |= (1 << ui::AX_STATE_FOCUSED);
-  }
-
   if (src.canvasHasFallbackContent())
     dst->AddBoolAttribute(ui::AX_ATTR_CANVAS_HAS_FALLBACK, true);
 
   WebNode node = src.node();
   bool is_iframe = false;
 
   if (!node.isNull() && node.isElementNode()) {
     WebElement element = node.to<WebElement>();
     is_iframe = element.hasHTMLTagName("iframe");
 
@@ skipping 202 matching lines @@
   }
 }
 
 blink::WebDocument BlinkAXTreeSource::GetMainDocument() const {
   if (render_frame_ && render_frame_->GetWebFrame())
     return render_frame_->GetWebFrame()->document();
   return WebDocument();
 }
 
 }  // namespace content