Support accessible inline text boxes.

content/browser/accessibility/browser_accessibility.cc

 // 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.
 
 #include "content/browser/accessibility/browser_accessibility.h"
 
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 25 matching lines @@
       index_in_parent_(0),
       renderer_id_(0),
       role_(0),
       state_(0),
       instance_active_(false) {
 }
 
 BrowserAccessibility::~BrowserAccessibility() {
 }
 
+bool BrowserAccessibility::IsLeaf() const {
+  return role_ == WebKit::WebAXRoleStaticText || child_count() == 0;
+}
+
 void BrowserAccessibility::DetachTree(
     std::vector<BrowserAccessibility*>* nodes) {
   nodes->push_back(this);
   for (size_t i = 0; i < children_.size(); i++)
     children_[i]->DetachTree(nodes);
   children_.clear();
   parent_ = NULL;
 }
 
 void BrowserAccessibility::InitializeTreeStructure(
@@ skipping 425 matching lines @@
     return name_;
   }
 
   std::string result;
   for (size_t i = 0; i < children_.size(); ++i)
     result += children_[i]->GetTextRecursive();
   return result;
 }
 
 }  // namespace content