Update browser accessibility tree on a renderer accessibility object state ch...

chrome/browser/browser_accessibility_win.cc

 // Copyright (c) 2010 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 "chrome/browser/browser_accessibility_win.h"
 
 #include "base/logging.h"
 #include "chrome/browser/browser_accessibility_manager_win.h"
 
 using webkit_glue::WebAccessibility;
@@ skipping 10 matching lines @@
 BrowserAccessibility::~BrowserAccessibility() {
   InactivateTree();
 }
 
 void BrowserAccessibility::Initialize(
     BrowserAccessibilityManager* manager,
     BrowserAccessibility* parent,
     LONG child_id,
     LONG index_in_parent,
     const webkit_glue::WebAccessibility& src) {
+  DCHECK_EQ(children_.size(), 0U);
+
   manager_ = manager;
   parent_ = parent;
   child_id_ = child_id;
   index_in_parent_ = index_in_parent;
 
   renderer_id_ = src.id;
   name_ = src.name;
   value_ = src.value;
   attributes_ = src.attributes;
   location_ = src.location;
@@ skipping 42 matching lines @@
     return parent_->IsDescendantOf(ancestor);
   }
 
   return false;
 }
 
 BrowserAccessibility* BrowserAccessibility::GetParent() {
   return parent_;
 }
 
+uint32 BrowserAccessibility::GetChildCount() {
+  return children_.size();
+}
+
 BrowserAccessibility* BrowserAccessibility::GetPreviousSibling() {
   if (parent_ && index_in_parent_ > 0)
     return parent_->children_[index_in_parent_ - 1];
 
   return NULL;
 }
 
 BrowserAccessibility* BrowserAccessibility::GetNextSibling() {
   if (parent_ &&
       index_in_parent_ < static_cast<int>(parent_->children_.size() - 1)) {
@@ skipping 917 matching lines @@
   }
 
   // The role should always be set.
   DCHECK(!role_name_.empty() || role_);
 
   // If we didn't explicitly set the IAccessible2 role, make it the same
   // as the MSAA role.
   if (!ia2_role_)
     ia2_role_ = role_;
 }