Added the selected text marker range to the dictionary for the selection change notification

content/browser/accessibility/browser_accessibility_manager.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_manager.h"
 
 #include <stddef.h>
 
 #include "base/logging.h"
 #include "build/build_config.h"
@@ skipping 392 matching lines @@
   return node;
 }
 
 bool BrowserAccessibilityManager::NativeViewHasFocus() {
   BrowserAccessibilityDelegate* delegate = GetDelegateFromRootManager();
   if (delegate)
     return delegate->AccessibilityViewHasFocus();
   return false;
 }
 
+BrowserAccessibility* BrowserAccessibilityManager::GetFocus() {
+  return GetFocus(GetRoot());
+}
+
 BrowserAccessibility* BrowserAccessibilityManager::GetFocus(
     BrowserAccessibility* root) {
   if (!focus_)
     return nullptr;
 
   if (root && !focus_->IsDescendantOf(root->node()))
     return nullptr;
 
   BrowserAccessibility* obj = GetFromAXNode(focus_);
   DCHECK(obj);
@@ skipping 338 matching lines @@
       tree_->CreateTreeSource());
   ui::AXTreeSerializer<const ui::AXNode*,
                        ui::AXNodeData,
                        ui::AXTreeData> serializer(tree_source.get());
   ui::AXTreeUpdate update;
   serializer.SerializeChanges(tree_->root(), &update);
   return update;
 }
 
 }  // namespace content