Make web content accessibility tree a descendant of main window's tree again

views/controls/native/native_view_host.cc

 // Copyright (c) 2009 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 "views/controls/native/native_view_host.h"
 
 #include "base/logging.h"
 #include "ui/gfx/canvas.h"
 #include "views/controls/native/native_view_host_wrapper.h"
 #include "views/controls/native/native_view_host_views.h"
@@ skipping 182 matching lines @@
   views::NativeWidget* native_widget =
       views::NativeWidget::GetNativeWidgetForNativeView(native_view_);
   if (native_widget &&
       native_widget->GetWidget()->ContainsNativeView(native_view)) {
     return true;
   }
 
   return View::ContainsNativeView(native_view);
 }
 
+gfx::NativeViewAccessible NativeViewHost::GetNativeViewAccessible() {
+  if (native_wrapper_.get()) {
+    gfx::NativeViewAccessible accessible_view =
+        native_wrapper_->GetNativeViewAccessible();
+    if (accessible_view)
+      return accessible_view;
+  }
+
+  return View::GetNativeViewAccessible();
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // NativeViewHost, private:
 
 void NativeViewHost::Detach(bool destroyed) {
   DCHECK(native_view_ || views_view_);
   native_wrapper_->NativeViewDetaching(destroyed);
   native_view_ = NULL;
   views_view_ = NULL;
 }
 
 }  // namespace views