Forward four more BrowserAccessibility APIs to AXPlatformNode.

ui/accessibility/platform/ax_fake_caret_win.cc

 // Copyright 2017 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/platform/ax_fake_caret_win.h"
 
 #include <windows.h>
 
 #include "base/logging.h"
 #include "ui/accessibility/ax_enums.h"
@@ skipping 35 matching lines @@
   if (event_target_) {
     ::NotifyWinEvent(EVENT_OBJECT_LOCATIONCHANGE, event_target_, OBJID_CARET,
                      -data_.id);
   }
 }
 
 const AXNodeData& AXFakeCaretWin::GetData() const {
   return data_;
 }
 
+const ui::AXTreeData& AXFakeCaretWin::GetTreeData() const {
+  CR_DEFINE_STATIC_LOCAL(ui::AXTreeData, empty_data, ());
+  return empty_data;
+}
+
 gfx::NativeWindow AXFakeCaretWin::GetTopLevelWidget() {
   return nullptr;
 }
 
 gfx::NativeViewAccessible AXFakeCaretWin::GetParent() {
   if (!event_target_)
     return nullptr;
 
   gfx::NativeViewAccessible parent;
   HRESULT hr =
@@ skipping 27 matching lines @@
 
 gfx::AcceleratedWidget AXFakeCaretWin::GetTargetForNativeAccessibilityEvent() {
   return event_target_;
 }
 
 bool AXFakeCaretWin::AccessibilityPerformAction(const ui::AXActionData& data) {
   return false;
 }
 
 }  // namespace ui